the percent of change in the average cost of a gallon from year one to year two is 5.8%
What is average cost change?The term "average cost" refers to the production cost per unit, which is determined by dividing the overall production cost by the overall number of units produced.
The overall cost of production can also be divided into fixed and variable costs. Since total fixed costs often remain constant, changes in total variable costs are the main cause of changes in average costs.
SolutionThe average cost of a gallon of gas in year one was $2.95
The average cost of a gallon of gas in year two was $2.78
The change in the average cost of a gallon from year one to year two is
$2.95 - $ 2.78
⇒$0.17
So percent of change in the average cost of a gallon from year one to year two is
($0.17/$2.95) * 100%
⇒ 0.0576 * 100%
⇒ 5.76%
⇒ 5.8%
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"Marsha has 54% left on her phone. Every 1 minute her battery life decreases by 1/2%. Write an equation to represent marshas phone battery life."
The answer to this Question based on Linear Relation is given below
What is Linear Relation?
It is a relation between two variables in which one variable has linear behaviour as other
means if one variable increases or decreases then other variables does same behaviour linearly
Solution:
let us denote the battery by b and time by t
b = 54 - t/2
this relation satisfies all the conditions that are given in Question and gives variation of battery with time and this if plotted on graph will give a linear straight line
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Pls help I forgot how to do this.
PLEASE HELP
A parking garage bases its
prices on the number of hours
that a vehicle parks in the
garage.
The first two hours cost $2 per
hour, between two hours and
six hours cost $2 per hour, and
all hours after that cost $1.
b
The first two hours cost $2 per
hour, between two and four
hours cost $1 per hour, and all
hours after that cost $0.50.
C
The first two hours cost $4.
between two hours and six
hours cost $2 per hour, and all
hours after that cost $1.
à
The first two hours cost $4.
between two hours and six
hours cost $1 per hour, and all
hours after that cost $0.50.
Answer:
Option C
The first two hours cost $4. Between two hours and six hours cost $2 per hour, and all hours after that cost $1.
Step-by-step explanation:
From the first part of the graph we can see that there is a flat rate of $4 for the first two hours. So the first two hours cost $4.
We can eliminate options A and B leaving C and D as only possible options.
Look at the second part of the graph
Between 2 hours and 6 hours(difference of 4 hours), the cost increases from $4 to $8 or an increase of $8
So rate per hour is $8/4 = $ 2 per hour between 2 hours and 6 hours
This information alone is enough to eliminate D but let's go to the rate beyond 6 hours just to make sure. This is the third part of the graph
Between 6 and 7 hours (1 hour) we can see the cost goes from $12 to $13 or a difference of $1. This means for every hour after 6 hours, the rate is $1 per hour.
So option C is the correct choice
g(x)=3(2)^x find g(3)
Answer:
g(3) is 24
Step-by-step explanation:
To find the value of g(3), we need to plug 3 into the function g(x) and evaluate the resulting expression. The function g(x) is defined as g(x) = 3(2)^x. When we plug 3 into this function, we get g(3) = 3(2)^3. To evaluate this expression, we need to calculate 2^3, which is 8. Therefore, g(3) = 3 * 8 = 24.
In summary, the value of g(3) is 24.
Answer:
g(3) = 24
Step-by-step explanation:
Given information,
→ g(x) = 3(2)^x
Then the value of g(3) will be,
→ g(x) = 3(2)^x
→ g(3) = 3(2)³
→ g(3) = 3(8)
→ [ g(3) = 24 ]
Hence, the value of g(3) is 24.
find the solution to the following system substitution y=-2 x -3 y= 3 x + 12
The solution to the system substitution is (x , y) = (-3,3).
What is substitution?The substitution operation in algebra is used to systematically replace instances of a symbol with a given value in various settings involving formal objects containing symbols (commonly called variables or indeterminates).A fundamental operation in computer algebra is substitution.In computer algebra systems, it is frequently abbreviated as "subs" or "subst."Here it is given that,
y=-2 x -3 and y= 3 x + 12
Take y=-2 x -3 as equation 1,
y= 3 x + 12 as equation 2'
by equating both equations,
-2x-3=3x+12
-3-12=3x+2x
5x=-15
x=-15/5
=-3
substituting the value of x in the equation1
y=-2x-3
y=-2(-3)-3
=3
Hence, The solution to the system substitution is (x , y) = (-3,3).
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Trapezoid ABCD where AB║CD is shown below
diagonals AC and DB intersect MN at E
and AD ≅ AE
If m∠ DAE =35° and m∠ DCE=25°
m∠ NEC=30° determine and state m∠ ABD
By using various properties of triangles, we get the value of [tex]\angle[/tex]ABD is 47.5°.
What are the properties of a triangle?
A triangle's sides and angles serve as the foundation for all of its characteristics. Triangular closed polygons with three sides and three vertices are what the word "triangle" means. The three internal angles of a triangle add up to 180°.
Let us first name a few angles that we will be using throughout the solution.
Let, [tex]\angle[/tex]DEN=a
[tex]\angle[/tex]ENC=c
[tex]\angle[/tex]MEB=b
[tex]\angle[/tex]EMB=d
Now, since it is given that AD ≅ AE, let us assume that triangle ADE is an isosceles triangle, with AD=AE.
Hence we get
[tex]\angle[/tex]DAE+[tex]\angle[/tex]ADE+[tex]\angle[/tex]AED=180° (angle sum property)
35°+2[tex]\angle[/tex]ADE=180°
[tex]\angle[/tex]ADE=[tex]\angle[/tex]AED=72.5°
Next, we know that
[tex]\angle[/tex]AED+a+[tex]\angle[/tex]NEC=180° (linear pair property of angles on a straight line)
72.5°+a+30°=180°
a=77.5°
Since a=b (opposite angles)
we get, a=b=77.5°
Now in triangle ENC, if we take the sum of angles, we get
[tex]\angle[/tex]NEC+[tex]\angle[/tex]NCE+c=180° (angle sum property)
30°+25°+c=180°
c=125°
We also know that the sum of interior angles made by an intersecting line between 2 parallel lines (given shape is a trapezoid) is 180, hence we get
c+d=180°
d=55°
In triangle MBN, we have
d+b+[tex]\angle[/tex]MBD=180° (angle sum property)
55°+77.5°+[tex]\angle[/tex]MBD=180°
[tex]\angle[/tex]MBD=47.5°
Therefore, we get the value of [tex]\angle[/tex]ABD=47.5°
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Solve the following inequalities 1/2(3x - 2) ≤ (x+4)
Answer:
x ≤ 10
Step-by-step explanation:
3/2 x - 1 ≤ x +4
3/2 x - x ≤ 1 + 4
(3-2)/2 x ≤ 5
1/2 x ≤ 5
2 * 1/2 x ≤ 2 * 5
x ≤ 10
the artist r. locklen jones selects 5 paintings from a collection of 7 to display in a row. how many different arrangements of the display are possible?
Different arrangements of the display are possible is 2520.
Given:
the artist r. locklen jones selects 5 paintings from a collection of 7 to display in a row.
Permutation :
A permutation is an arrangement of objects in a definite order. The members or elements of sets are arranged here in a sequence or linear order.
= [tex]7_P_5[/tex]
we know that,
[tex]n_P_r[/tex] = n! / ( n - r ) !
[tex]7_P_5[/tex] = 7! / ( 7 - 5 ) !
= 7! / ( 2 ) !
= 7! / 2!
= 7 * 6 * 5 * 4 * 3 * 2! / 2!
= 42 * 20 * 3
= 840 * 3
= 2520
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If xy(-z) = 150, find the values of (-2x)(2y)(-4z)
WILL GIVE BRAINLIEST IF THE ANSWER IS CORRECT!
Answer:
a=-2400
Step-by-step explanation:
We have -x*y*z = 150. We want to find the value of -2x*2y*-4z. Let's set this to a variable, a. We have now that [tex]2x*2y*4z = a[/tex] (because the negatives combine to a positive), where we want to solve for a. This is equal to [tex]16xyz = a[/tex], and dividing by 16 on both sides results in [tex]xyz = a/16[/tex]. Recall that we know [tex]-xyz = 150.[/tex] Negating each side gives us [tex]xyz = -150.[/tex]
Now we have two equations that are equal to the same thing(xyz), so we can set them equal to each other. This gives us [tex]-150 = a/16[/tex]. To solve for a, we multiply both sides by 16, giving us a = -2400. This is our answer!
Hope this helps!
HELP ASAAAPPPO! Dawn is making an abstract painting with two triangles. The dimensions of the painting are shown below:
Two triangles share the same height of 8 inches. One triangle has a base of 6 inches and the other is 10 inches.
The total area of the two triangles is
???
square inches.
the total area of the two triangles as shwon in the image is 70 in²
What is area?Area can be defined as the total portion occuppied by a plane fiqure.
To calculate the total area of the two triangles, we use the formula below.
Formula:
Total area of the triangle = Area of the pink triangle+Area of the purple triangleArea of the purple triangle = bh/2.................. Equation 1Where:
b = Base of the purple triangle = 8 inh = Height of the purple triangle = 10 inSubstitute these values into equation 1
Area of the purple triangle = 8×10/2Area of the purple triangle = 40 in²Similarly,
Area of the pink triangle = BH/2........ Equation 1Where:
B = 6 inH = 10 inSubstitute these values into equation 2
Area of the pink triangle = 6×10/2Area of the pink triangle = 30 in²Therefore, the total area of the two triangles is 40+30 = 70 in².
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Which choice is the solution to the inequality below?
6x>72
OA. x< 12
OB. x> 12
OC. x2 72
OD. x>72
The solution to the inequality 6x > 72 is option B x > 12
What is an inequality?
An inequality in mathematics is a relation that compares two numbers or other mathematical expressions in an unequal way. The majority of the time, size comparisons between two numbers on the number line are made. Different types of inequalities are represented by a variety of notations, including:
The symbol a < b indicates that a is smaller than b.
When a > b is used, it indicates that a is bigger than b.
A is not equivalent to b in any scenario. Since a is strictly less than or strictly greater than b, these relationships are known as stringent inequalities. Equivalence is not considered.
There are two forms of inequality relations that are not strict, in contrast to strict inequalities:
The notation a ≤ b or a ⩽ b means that a is less than or equal to b (or, equivalently, at most b, or not greater than b).
The notation a ≥ b or a ⩾ b means that a is greater than or equal to b (or, equivalently, at least b, or not less than b).
Given, the inequality is 6x>72
6x > 72
Dividing by 6 on both sides of inequality, we get,
6x/6 > 72/6
⇒ x > 12
Hence, option B is correct.
The solution to the inequality 6x > 72 is option B, x > 12
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please help!
The measure of angle J is 120⁰ and is supplementary to the measure of angle K. If the measure of angle K is 12 x , what is the value of x ?
Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.
Using the fact that the angles are supplementary, we can write and solve a linear equation to find that x = 5°.
How to find the value of x?
Remember that two angles are supplementary if the addition of their measures is equal to 180°.
Here we know that angles J and K are supplementary, then we know that:
J + K = 180°
Here we also know that:
J = 120°
K = 12x
So we can write a linear equation of the form:
120° + 12x = 180°
12x = 180° - 120°
12x = 60°
x = 60°/12 = 5°
x = 5°
We conclude that the value of x is 5°.
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Consider the piecewise function shown on the graph, which is composed of three different function types.
-10 -8 -6 -4 -2
10-
8
6
4
2
-2
-4
6
-8-
02
-10-
4 6
Match each piece of the function with its domain.
8 10
The quadratic is the left-most piece. This exists on the interval (-infty, -2).
The linear piece is the center piece and exists on the interval (-2,6).
The square root piece is the right-most piece and exists on (6, infty).
These intervals are describing how each piece lines up with the x-axis, as illustrated in the picture.
The required description of the given piecewise function are as follows:
quadratic → (-∞, -2); linear → (-2, 6) and square root → (6, ∞).
What is a piecewise function?A piecewise-defined function (also known as a piecewise function or a hybrid function) is a function defined by multiple sub-functions, each of which applies to a different interval of the main function's domain (a sub-domain).
The graph is given in the question, as shown
1. quadratic function:
This the sub-function define between the interval (-∞, -2).
2. linear function:
This the sub-function define between the interval (-2, 6).
3. square root function:
This the sub-function define between the interval (6, ∞).
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Sketch the curve with the given vector equation. Indicate with an arrow the direction in which t increases.
Refer to the attachment for graph.
What are vector equations ?
Vector equations allow for the creation of parametric curves. That is, points in space are formed for each value of the parameter by the equation of a vector, where each of its elements has a function with an independent variable that we refer to as a parameter.
Given vector equation:
r(t) = < t², t, 2 >
When t= -2,
r(-2) = < (-2)², -2, 2 >
= < 4, -2, 2 >
This means. when t= -2, the curve touches the point ( 4, -2, 2 )
Similarly, when t= -1, the curve touches the point ( 1, -1, 2 )
Table is attached.
graph is attached.
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help meeeeeeeeeee pleaseee
(a) The population of the state was 18.5 million in 2000. (b)The population of the state will reach 26.6 million in the year 2002
What is Population ?A population is a distinct collection of people, whether that group consists of a nation or a population that shares a specific trait. A population is the group of people from which a statistical sample is taken in statistics. As a result, a population can be defined as any group of people who have something in common.
Since t = 0 ,
Then A = 18.5
(b) The population of the state will reach 26.6 million in the year 2002
2002, by using the formula is 18.5e^0.173*t
Given,
A= 26.6
Then,
[tex]A = 18.5 x e^{(0.1708t)} 26.6[/tex]
[tex]= 18.5 x e^{(0.1708t)} \frac{26.6}{18.5}[/tex]
= [tex]e^{(0.1708t)} 1.437838[/tex]
= [tex]e^{(0.1708t)} \ln (\frac{1.437838}{0.1708})[/tex]
t = 2.126116
t =2
Therefore, 2 is the round down to the nearest years. So 2002 is the approximate year the population reached 26.6 million.
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A bag contains 1 orange, 1 yellow, and 2 blue balls. The balls are replaced after each selection.
Draw a sample space to find the probability that the two selected balls are an orange ball and a blue ball.
The probablity that the two balls are orange and blue is 1/8
Describe Probability:
This is the chance or likelihood that an event will take place.
One orange ball, one yellow ball, and two blue balls are there in a bag.
The total number of sample space or outcome can be given as
Total outcome = 1 + 1 + 2=4
Probablity of occouring an orange ball can be given as, 1/4
Probablity of occouring a blue ball can be given as, 2/4
Probablity of an orange ball and a blue ball = 1/4 * 2/4
Probablity of an orange ball and a blue ball = 1/8
Consequently, there is a 1/8 chance that the two chosen balls are orange and blue
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Solve the inequality -9x/11 - 7 < -5. x > x < - x < x > -
The disparity -9x/11 - 7 < -5 is x > -22/9
Explain about the inequality?The equals sign in the equation-like statement 5x 4 > 2x + 3 has been replaced by an arrowhead. This is a prime instance of inequality. This indicates that the left half, 5x 4, is larger than the right part, 2x + 3, in the equation.
Mathematical expressions with inequalities on both sides are known as inequalities. In an inequality, we compare two values as opposed to equations. In between, the equal sign is changed to a less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
The equals sign in the equation-like statement 5x 4 > 2x + 3 has been replaced by an arrowhead. This is a prime instance of inequality.
-9x/11 < 2 (add 7 to both sides) (add 7 to both sides)
-9x < 22 (multiply both sides by 11) (multiply both sides by 11)
x > 22/-9 Because you are dividing by a negative integer, change the sign.
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Answer: x > [tex]\frac{-22}{9}[/tex]
Step-by-step explanation:
To solve this inequality, we will isolate the variable, x, with inverse operations.
Given:
[tex]\frac{-9x}{11}[/tex]- 7 < -5
Add 7 to both sides of the inequality:
[tex]\frac{-9x}{11}[/tex] < 2
Multiply both sides of the inequality by 11:
-9x < 22
Divide both sides of the inequality by -9:
* note, we must "flip" the sign since we are dividing by a negative integer
x > [tex]\frac{-22}{9}[/tex]
Warm Up:
When designing a survey, what is one of the first things you need to know? What would you ask yourself?
Answer: Come up with questions that make sence. That are good solvablequestions. Make sure that you are able to take data off of it to see how people result in it.
Step-by-step explanation:
HOME VALUE The average value of a house changes over time. The average
values of a house in January in Denver, Colorado, for different years are as
follows: 2014, $254,000; 2015, $293,000; 2016, $338,000; 2017, $372,000.
a. Make a table.
b. Determine the domain and range of the relation.
c. Determine whether the relation is a function.
a. The table for the given data is as follows :
Year 2014 2015 2016 2017
Value (in $) 254000 293000 338000 372000
b. Domain and Range for the given relation is:
Domain : {2014, 2015, 2016, 2017}
Range : {254000, 293000, 338000, 372000}
c. From the table we observe that for each year it is having a unique value so it is related to the function.
What is Domain?
The domain of a function is the set of values that we are allowed to plug into our function. This set is the x values in a function such as f(x).
What is Range?
The range of a function is the set of values that the function assumes.
What is Relation?
A collection of ordered pairs having one item from each set makes up a relation between two sets. If the ordered pair (x,y) is present in the relation and the items x and y come from different sets, then the objects are said to be connected
a. The table for the given data is as follows :
Year 2014 2015 2016 2017
Value (in $) 254000 293000 338000 372000
b. Domain and Range for the given relation is:
Domain : {2014, 2015, 2016, 2017}
Range : {254000, 293000, 338000, 372000}
c. From the table we observe that for each year it is having a unique value so it is related to the function.
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Which system of linear inequalities is graphed?
x ≤ -2
y≤ -x-3
x< -3
y< -x-2
x<-2
y≤ -x+2\
x< -2
y≤-x -2
The system of linear inequalities is graphed is x < -2; y ≤ -x+2. Hence option c is the correct.
What is inequality?
In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.
The graph consists of two inequalities.
Since the one graph line is solid, thus the inequality sign either "less than or equal" or "greater than or equal". The other one is dotted, thus it will be less than or greater than
First find the equation of line.
One line passes through the points (-2,0) and (0,-2).
The equation of line that passes through the point (a,0) and (0,b) is
x/a + y/b = 1
The equation of the line is x/(-2) + y/(-2) =1
x + y = -2
y = -x - 2
The equation of the inequality will be either y ≤ -x - 2 or y ≥ -x - 2.
Putting x =0 and y = 0 in y ≤ -x - 2
0 ≤ - 0 -2
0≤ -2 (false)
In the graph (0,0) does not include in the shaded region. Therefore the inequality is y ≤ -x - 2.
The second line is parallel to y-axis.
The equation of line will be x = a
The line passes through the point (-2,0)
Putting x = -2 and y =0 in x = a
-2 = a
Therefore the equation of the dotted line will be x = -2
The equation of the inequality will be either x > -2 and x < -2:
Putting x =0 and y = 0 in x < -2
0 < -2
0 < -2 (false)
In the graph (0,0) does not include in the shaded region. Therefore the inequality is x < -2.
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Pls answer as fast as you can, no pressure.
Pavel is designing a restaurant and wants a unique dining area to add to the interest of the design. He thinks that an obtuse isosceles triangle would fulfill this requirement. He has two lengths of railing already in his possession—one that is 12 meters in length and one that is 22.8 meters in length. If he wants to keep his obtuse isosceles triangle design, which railing should he order a duplicate of to create his dining area. Explain.
To keep the obtuse isosceles triangle design, the railing that he should order a duplicate of to create his dining area is of:
12 meters.
When does a set of three measurements can represent a triangle?A set of measurements can represent a triangle if the sum of the two smaller measurements is greater than the greater measures.
The measurements in this triangle are given as follows:
Smallest: 12 meters.Largest: 22.8 meters.If he orders a duplicate of the largest measurement, the smallest measurement would be the base of the isosceles triangle, meaning that it would be an acute isosceles triangle.
Then he should order a duplicate of the smallest measurement, of 12 meters, as then they would be the sides between the obtuse angle of the isosceles triangle.
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Answer:
Step-by-step explanation:
To keep the obtuse isosceles triangle design, the railing that he should order a duplicate of to create his dining area is of:
12 meters.
When does a set of three measurements can represent a triangle?
A set of measurements can represent a triangle if the sum of the two smaller measurements is greater than the greater measures.
The measurements in this triangle are given as follows:
Smallest: 12 meters.
Largest: 22.8 meters.
If he orders a duplicate of the largest measurement, the smallest measurement would be the base of the isosceles triangle, meaning that it would be an acute isosceles triangle.
Then he should order a duplicate of the smallest measurement, of 12 meters, as then they would be the sides between the obtuse angle of the isosceles triangle.
I need help guys I don’t know what to do or how to do it can someone help me out?
Answer:
I'll help
Step-by-step explanation:
the entrance fee to the skating rink=$5
each minute the skater uses the rink costs=$0.25
The percentage of titanium in an alloy used in aerospace castings is measured in 51 randomly selected parts. The sample standard deviation is s = 0.37 and the probability plot support the assumption that the population is normally distributed. Construct a 95% two-sided confidence interval for ?.
A 95% two-sided confidence interval is 0.46 < a <0.31 .
The formula for confidence interval for population standard deviation is,
[tex]s\sqrt{\frac{n-1}{X^{2} _{1-a/2,n-1} } }[/tex] < a < [tex]s\sqrt{\frac{n-1}{X^{2} _{a/2,n-1} } }[/tex]
Given in question,
Significance level, a = 1 - 0.95
= 0.05
Sample size, n = 51
Sample standard deviation, s = 0.37
By using chi-square distribution table, we get
[tex]X^{2} _{1-a/2,n-1}[/tex] = [tex]X^{2} _{0.975,50}[/tex]
= 32.36
[tex]X^{2} _{a/2,n-1}[/tex] = [tex]X^{2} _{0.025,50}[/tex]
= 71.42
Confidence interval for population standard deviation is :
[tex]0.37\sqrt{\frac{50}{32.36} }[/tex] < a < [tex]0.37\sqrt{\frac{50}{71.42} }[/tex]
0.45992018426 < a < 0.30958278534
Hence, a 95% two-sided confidence interval is 0.46 < a <0.31 .
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Kim has $45 to spend for a day at the zoo. She pays $17 for admission, $8 for lunch, and $4 for a snack. Use integers to write an expression that represents the amount of money Kim has left and determine how much she has.
What is the square root of 144?
Answer:12
Step-by-step explanation:
Find the value of x.
It’s using the intersecting secant formula for exteriors but I keep getting decimals and it’s wrong.
Answer:
x = 7
Step-by-step explanation:
x(XY) = 6(WX)
x(x + 11) = 6(6 + 15)
x² + 11x = 126
x² + 11x - 126 = 0
126 = 7 × 18
(x + 18)(x - 7) = 0
x + 18 = 0 or x - 7 = 0
x = -18 or x = 7
We discard the negative answer.
x = 7
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A newspaper started an online version of its paper 14 years ago. In a recent presentation to stockholders, the lead marketing executive states that the revenues for online ads have more than doubled that of the revenues for printed ads since starting the online version of the paper. Use the graph below to justify the lead executive’s statement and to determine the approximate year that the two ad revenues were equal.
Graph with x axis labeled years. Y axis labeled revenue in dollars. The line for printed ad revenue starts at 0, 3 and goes through the10, 2. The line for online ad revenue starts at 0, 0 zero and goes through the 10, 3.
A) The lead executives statement has been justified below considering the fall and rise of the graph line.
B) Between the years 7 and 8.
How to Interpret Linear Graphs?A) Looking at the attached graph, we can trace that the printed ad's revenue peaked at $3 million and then began to fall steadily. The online ad revenue started with nothing and thereafter gradually increased in value to millions of dollars. Now, since the printed ad revenue has been declining and online ad revenue is seen to be increasing, it means that the lead executive's assertion is accurate.
B) Both curves are seen to intersect between the seventh and eighth year, I would say around the middle of year 7, and both online ads and printed ads generated an approximate revenue of $2.2 million each
Between the years 7 and 8.
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Which of the following makes NO distinction between an explanatory variable X and a response variable Y (i.e., you can interchange the roles of X and Y and get the same result)?CorrelationOnly correlation makes no distinction between the X and Y variables. With regression the line would be flipped.
The term that makes NO distinction between an explanatory variable X and a response variable Y is Correlation , the correct option is (a) .
In the question ,
four options are given ,
we have to select the option that makes no distinction between explanatory variable X and a response variable Y .
Response Variable is the (dependent variable) measures the outcome of the study.
Explanatory Variable is the (independent variable) helps to explain or influence changes in a response variable.
So , Correlation makes no distinction between explanatory and response variables.
So , it makes no difference in calculating the correlation , which variable you call x and which you call y .
Therefore , the correct option is (a) .
The given question is incomplete , the complete question is
Which of the following makes NO distinction between an explanatory variable X and a response variable Y (i.e., you can interchange the roles of X and Y and get the same result) ?
(a) Correlation
(b) Regression
(c) Both correlation and regression make no distinction between X and Y.
(d) Both correlation and regression make distinction between X and Y.
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URGENT HELP PLeASE please just answer b and c
Answer:
b) 2/9
c) 1/3
Step-by-step explanation:
The probability of a desired event happening is the number of ways the desired event can happen divided by the total number of possible outcomes.
a) Correct
b)
There are 9 possible outcomes.
2 outcomes are negative.
p(negative) = 2/9
c)
There are 3 outcomes that are more then 3.
p(more than 3) = 3/9 = 1/3
Is the following statement linear or exponential?
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week. HELP PLEASE
Answer:
exponential
Step-by-step explanation:
the 14% of a number will be always greater because the numbers themselves will be greater