Answer:
Its b
Step-by-step explanation:
I did the test...
The correct statement about a trend line is: A trend line and a regression line are equivalent terms.
A trend line and a regression line are NOT equivalent terms. They refer to different concepts in data analysis.
1. Trend Line:
A trend line, also known as a line of best fit, is used to represent the general direction or pattern of a dataset. It is a straight line that fits through the data points in a scatter plot to show the overall trend in the data. The primary purpose of a trend line is to identify the underlying pattern or tendency of the data points. Trend lines can be linear or nonlinear, depending on the nature of the data.
In simple terms, a trend line helps us visualize whether the data is increasing, decreasing, or following a specific pattern over time or across a range of values.
2. Regression Line:
A regression line is a specific type of trend line used in linear regression analysis. Linear regression is a statistical method that examines the relationship between two or more variables to predict an outcome. It finds the "best-fit" straight line that minimizes the sum of the squared differences between the actual data points and the predicted values.
The regression line represents the relationship between the independent variable(s) (usually denoted as 'X') and the dependent variable (usually denoted as 'Y'). It provides an equation of the form Y = a + bX, where 'a' is the y-intercept and 'b' is the slope of the line. The regression line serves as a predictive model to estimate the value of the dependent variable based on the values of the independent variable(s).
- A trend line represents the general direction or pattern of a dataset.
- A regression line is a specific type of trend line used in linear regression to predict outcomes based on the relationship between variables.
Therefore, the correct statement is: A trend line and a regression line are NOT equivalent terms.
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There are 12 boys and 13 girls in a class. If the teacher randomly chooses a student's name out of a hat, what is the probability it will be a girl?
◯ 48%
◯ 50%
◯ 52%
◯ 92%
The probability of selecting a girl is 52%
How to determine the probability?The given parameters are:
Boy = 12
Girl =13
The probability of selecting a girl is:
P(Girl) = Girl/Total
This gives
P(Girl) = 13/(12 + 13)
Evaluate
P(Girl) = 52%
Hence, the probability it will be a girl is 52%
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Unit 10: Circles Homework 2
Answer:
are this the answers?
Step-by-step explanation:
The value of x is 16 degrees and the measure of the arc DFG for circles of homework 2 are 1 6.056 times radius of circle.
What is the property of a straight angle?The property of straight angle says that, the angle of a straight line is equal to the 180 degrees.
It can also be define as the sum of all the angle made on the straight line is equal to the 180 degrees.
For the first problem, the line GE, which is the diameter of the circle has two angles over it (x-3) degree and (12x-25) degrees.
For the diameter GE the sum of these two angle will be equal to 180 degrees. Thus,
[tex](x-3)+(12x-25)=180\\x-3+12x-25=180\\13x-28=180\\13x=180+28\\x=\dfrac{208}{13}\\x=16^o[/tex]
The value of mDE will be equal to (12x-25) as it is verticle angle of mGF. Thus,
[tex]arcDE=(12x-25)\\arcDE=(12(16)-25)\\arcDE=167^o[/tex]
Similarly the value of mEF
[tex]arcEF=(x-3)\\arcEF=(16-3)\\arcEF=13^o[/tex]
Let the radius of the circle is R. Then the measure of arc DFG is equal to the sum of areDEF and arc GF. Thus,
[tex]arcDFG=\dfrac{2\pi R}{2}+\dfrac{2 \pi R \angle GHF}{360}\\arcDFG=\dfrac{2\pi R}{2}+\dfrac{2 \pi R (167^o)}{360}\\arcDFG=6.056R[/tex]
For the second problem, the angle MN and QO are equal due to the vertical angle property. Therefore,
[tex](10x-45)=(6x-1)\\10x-6x=-1+45\\4x=44\\x=11[/tex]
The value of mMN is,
[tex]MN=(10x-45)\\MN=(10(11)-45)\\MN=65^o[/tex]
The value of NP using the property of straight line for line segment MP can be given as,
[tex]NP=180-MN\\NP=180-65\\NP=115^o[/tex]
Thus, the value of x is 16 degrees and the measure of the arc DFG for circles of homework 2 are 1 6.056 times radius of circle.
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bobs gift shop sold 350 cards for mothers day one saleman henry sold 4% of the cards sold for mothers day how many cards did henry sell?
Answer:
14
Step-by-step explanation:
4% of 350 is 14 so he only sold 14
4x – 5 = 2(2x + 1) Please help plss
Answer:
0=7
Step-by-step explanation:
Distribute
4−5=2(2+1)
4−5=4+2
Add 5 to both sides of the equation
4 − 5 = 4 + 2
4 − 5 + 5 = 4 + 2 + 5
Simplify Add the numbers
Add the numbers
4 = 4 + 7
Result
0=7
Can someone plz help me with this !!!
Answer:
Yes!
Step-by-step explanation:
The y = -17
The x = 18
y = x-35
-17 does equal 18 - 35
Hope that helps!
Step-by-step explanation: no it dosent i dont think
Utilize as propriedades das potências e resolva 2⁴ * 2⁷ * 2⁵
Answer:
65536
Step-by-step explanation:
2 elevado a 4 é 16 e 2 elevado a 7 é 128 e 2 elevado a 5 é 32, multiplique-os e você obterá 65536
Which statement accurately describes the graph 2y=4x+8?
IM IN A TEST HURRY PLEASE!!
The statement which describes the given line the best is required.
The correct statement is an increasing line that passes through [tex](0,4)[/tex]
Equation of linesThe given equation is [tex]2y=4x+8[/tex]
Two points of the line are
[tex]x=0[/tex]
[tex]2y=0+8\\\Rightarrow y=4[/tex]
[tex](0,4)[/tex]
[tex]y=0[/tex]
[tex]0=4x+8\\\Rightarrow x=-2[/tex]
[tex](-2,0)[/tex]
The line passes through points [tex](0,4),(-2,0)[/tex]
The slope intercept form of the line is
[tex]y=\dfrac{4x+8}{2}\\\Rightarrow y=2x+4[/tex]
The slope is [tex]2[/tex]
Since, the slope is positive the line is increasing.
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20 POINTS HELP ASAP
determine wether the equation is an identity or not an identity. sin theta/ cos theta
Answer:
A
Step-by-step explanation:
True or False
Lateral surface area will always be greater than total surface area of the same 3-D Figure
find the value of given expression
[tex] \sqrt{120 - ( - 1)} [/tex]
Answer:
your answer will be 11
Step-by-step explanation:
......
Answer:
11 Ans ....
Step-by-step explanation:
Given:
=√120-(1)
Solution:
=√120 -(1)
= √121
=11 Answer......
Which expression is equivalent to
Answer:
B
Step-by-step explanation:
Which graph shows the solution to the system of linear inequalities?
2x – 3y <12
y < –3
Answer:
D
Step-by-step explanation:
no explination
9. Sara and Yusuf's grandmother gives them money for Christmas every year. They share the money in the
ratio of their ages. This year their grandmother gave them R1 500 together. Sara received R675. They are both younger than 18 years old. Determine how old Sara and Yusuf are.
in
Answer:
Sara is 9 years old while Yusuf's is 11 years old
Step-by-step explanation:
The given parameters are;
The ratio Sara and Yusuf share the money they receive = The ratio of their ages
The amount Sara and Yusuf received from their grandmother this year = R1,500
The amount of money Sara receives = R675
Therefore, the amount of money Yusuf receives = R1,500 - R675 = R825
Let 'x', and 'y' represent the ages of Sara and Yusuf
Therefore, the ratio of their ages, x/y = R675/R825) = 9/11
x·11 = y·9
x, and y < 18
When x = 9, y = 11, we get;
9·11 = 11·9
Therefore a possible solution is Sara's age = x = 9 and a possible solution for Yusuf's age, y = 9
Can somebody help me with this. Will Mark brainliest.
Answer: sinx= 8/11
Step-by-step explanation: Since it gives you the hypotenuse and opposite side use sine.
sin= opp/ hyp = 8/11
So... sinx = 8/11
A scientist illegally introduces new species of honey bees in their labs. The growth of the population of this new species is modeled by the equation below, where x is the time in weeks following the introduction of the species. What is happening to the illegal honey bee population each week? B\left(x\right)=a_0\left(3\right)^xB(x)=a 0 (3) x
Answer:
Currently, scientists have identified at least three potential causes: parasites, pesticides, and poor nutrition of the bees.
Step-by-step explanation:
HELP DUE IN 10 MINS!
Rounds to nearest foot.
The ladder reaches ?? feet up the wall
Answer:
Use sine:
x/ 30 = sin 35°x = 30 sin 35°x = 17 ft (rounded)What is the equation of the line that passes through the point (-6,3) and has a
slope of -1/6?
Answer:
y = -1/6x + 2
Step-by-step explanation:
Put it in point-slope form:
y - 3 = -1/6(x + 6)
y -3 = -1/6x - 1
y = -1/6x + 2
Which group of data isbthe most clustered? A 76,84,86 B 5,8,7,11,14,8 C 25,50,50,25,75,75 D 23,25,28,29,30
Answer:
C
Step-by-step explanation:
Clustered data emerge when the data from the entire sample can be grouped into a variety of different categories, refers to as clusters. Each cluster involves numerous observations, giving the data a “clustered” or “hierarchical” structure, with each observations encapsulated within the cluster.
Also, if we plot a series of numbers on a graph and we will see several of our dots gathered together, we have a cluster
From the above definition of clustered data the only option that is fitting into it is option C .
25,50,50,25,75,75
Someone help plz make sure it’s right :)
Answer:
6 m
Step-by-step explanation:
By Pythagoras Theorem:
[tex]x = \sqrt{ {10}^{2} - {8}^{2} } \\ \\ x = \sqrt{100 - 64} \\ \\ x = \sqrt{36} \\ \\ x = 6 \: m[/tex]
Step-by-step explanation:
10² = 8² + x²
x² = 10² - 8²
x² = 36
x = √36
x = 6
the graphs below have the same shape. What is the equation of the blue graph?
g(x) = jawabannya A. g(x) = 7 - x2
Find the value or measure. Assume that all segments that appear to be tangent are tangent. Round answers to the nearest tenth, as needed.
Answer:
23.26
Steps:
AC=√(10²+21²)
AC=√(100+441)
AC=√541
AC≈23.26
Help ASAP!
553.168 L = mL
Work out m and c for the line: y+2x=3
Answer:
m = - 2, c = 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
y + 2x = 3 ( subtract 2x from both sides )
y = - 2x + 3 ← in slope- intercept form
with m = - 2 and c = 3
Nicole washed 4/10 of a bag of potatoes.She left the rest in a basket outside what amount of potatoes did Nicole leave outside?
Answer:
6/10 Simplified: 3/5 of a bag
Step-by-step explanation:
One bag= 10/10
She washed 4/10
So, 10/10-4/10=6/10
6/10=3/5
3/5 of a bag
Hope this helped! :)
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Jimmy is on the driving team at his school the quadratic function graphed on the coordinate plane below represents on of jimmy dives. Where x represent the horizontal distance , in feet that he is from the diving board and y represent his height , in feet above the water level . Explain the meaning of the meaning of x and y intercept in terms of context
Look at the picture :)
Answer:
X on the graph represents horizontal distance, the x intercept represents when he ends his dive and lands in the water. The x intercept = 8 meaning he is 8 feet away from the diving board when he lands in the water. The y-intercept of y = 13 means the starting point of his dive.
Good luck! :)
Credits: Xin for part A
NEED HELP ASAP WILL GIVE BRAINLY
Answer: I think C
Step-by-step explanation:
Answer:
.
Step-by-step explanation:
[tex]65 = b \times h[/tex]
[tex]h = \frac{65}{b} [/tex]
The snail moved 6 inches in 120 minutes. What was the average speed of the snail in inches per minute? StartFraction 1 Over 20 EndFraction of an inch per minute One-half of an inch per minute 2 inches per minute 20 inches per minute
Answer:
Sorry I'm late but to people that need this!
Step-by-step explanation:
It's A!
Instructions: Find the missing length indicated.
Answer:If you are following a area of a triangle is bxhx1/2 or bxh/2
1,800
Step-by-step explanation:100x36=3,600/2=1,800
This list shows the numbers of rocks each member of a rock collection club owns.
5, 18, 26, 11, 3, 20, 9, 12, 24
What is the range of the number of rocks owned by the members?
19
21
23
24
HELP PLEASE I need it abbreviated !
Answer:
30 inch²
Step-by-step explanation:
a + b/2 x h
8 + 10/2 X 5 = 30