HELP 50 PONITS, THIS IS DUE TODAY HELP
Graph the inverse for each relation below-show answers right over the existing graph on the same
plane. 3 points each
The inverse of the graphs are added as an attachment
Plotting the inverse of the graphTo plot the inverse of a graph, you can follow these steps:
Start with a function f(x).Replace f(x) with y.Swap the x and y variables so that the equation is in terms of x and y.Solve for y to get y = f^(-1)(x), which represents the inverse function.Plot the original function f(x) on a coordinate plane.Reflect the graph of f(x) across the line y = x to get the graph of fSee attachment for the graphs
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B
133⁰
Calculate the size of angle EDC.
47°
A
126⁰
C
101°
F
62°
E
Not drawn accurately
Answer:
angle EDC = 64 degrees
a term used to describe the case when the independent variables in a multiple regression model are correlated is . a. correlation b. multicollinearity c. linearity d. regression
Multicollinearity refers to a situation in multiple regression where the independent variables, or predictors, in a statistical model are correlated with each other. Option B multicollinearity is correct.
Multicollinearity can result in several problems, including:
Difficulty in interpreting regression coefficients: When predictor variables are highly correlated, it becomes challenging to interpret the individual effect of each predictor on the dependent variable, as the effects may be confounded or mixed up.Unstable estimates of regression coefficients: Multicollinearity can lead to unstable or unreliable estimates of regression coefficients, as small changes in the data or the model can result in large changes in the estimated coefficients.Reduced statistical power: Multicollinearity can reduce the statistical power of a multiple regression model, making it harder to detect significant relationships between the predictors and the dependent variable.Increased standard errors: Multicollinearity can lead to increased standard errors of the regression coefficients, which can result in wider confidence intervals and decreased precision in estimating the true coefficients.It is important to identify and address multicollinearity in a multiple regression model to ensure accurate and reliable interpretation of the results. This can be done through techniques such as variance inflation factor (VIF) analysis, principal component analysis (PCA), or using a subset of predictors with low intercorrelation.
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The term used to describe the case when the independent variables in a multiple regression model are correlated is
b. multicollinearity is correct.
Multiple regression is a typical method in statistical modelling for determining the association between a dependent variable and two or more independent variables.
The fundamental tenet of multiple regression is that there is no correlation between the independent variables. Multicollinearity is the outcome when this assumption is broken, which can happen in real life.
When two or more independent variables in a multiple regression model have a high correlation with one another, multicollinearity arises.
Due to these issues, the model's coefficients may not be correctly interpreted, producing estimates that are inaccurate and unstable.
It is challenging to separate the distinct impacts of each independent variable on the dependent variable when multicollinearity is present because these effects are entangled and difficult to separate.
b. multicollinearity is correct option.
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Jamar is going to invest in an account paying an interest rate of 4.7% compounded quarterly. How much would Jamar need to invest, to the nearest ten dollars, for the value of the account to reach $18,000 in 7 years?
Jamar would need to invest approximately $12,115.77, rounded to the nearest ten dollars, for the value of the account to reach $18,000 in 7 years using compound interest.
Compound interest calculation.
We can use the formula for compound interest to solve for the initial investment amount, which is:
A = P(1 + r/n)^(nt)
where A is the future value, P is the principal (initial investment), r is the annual interest rate (as a decimal), n is the number of times the interest is compounded per year, and t is the time in years.
In this case, we want to find P, and we know that A = $18,000, r = 0.047, n = 4 (quarterly compounding), and t = 7. Substituting these values, we get:
$18,000 = P(1 + 0.047/4)^(4*7)
$18,000 = P(1.01175)^28
P = $12,115.77
Therefore, Jamar would need to invest approximately $12,115.77, rounded to the nearest ten dollars, for the value of the account to reach $18,000 in 7 years.
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Quick question need help
Answer:
18.8651
Step-by-step explanation:
(im not the best at explaining, so sorry if i dont explain it well, but ill try!)
so rounding a number to a certain amount of sig figs is a pretty easy concept to grasp, in my opinion.
ex: lets say you need to round 231.45 to 3 sif figs.
basically what you have to do in this situation is count the digits up to you get to the 3rd digit.
check if the digit that follows it is smaller or bigger than 5 to see if the 3rd number will stay the same or has to go up a number.
for this problem the third digit is 1, and the digit that follows it is 4. but 1 is less than 4, so that means that it will stay as 1.
thus the answer would be 231.
if that didnt make sense, comment on my answer and ill try to give you more examples
a tetrahedral die is an equilateral triangular pyramid. the base edge of the tetrahedral die is 26 millimeters and the height it 20 millimeters. what is the surface area of the tetrahedral die to the nearest ten square millimeters?
Answer:1,041
Step-by-step explanation:
The surface area of the tetrahedral die is 1353 square millimeters
To find the surface area of the tetrahedral die, we need to find the area of each of the four equilateral triangular faces and add them together.
The formula for the area of an equilateral triangle is A = (√(3)/4) x s², where s is the length of the side.
In this case, the base edge of the tetrahedral die is 26 millimeters, so the length of each side of the equilateral triangles is also 26 millimeters.
Using the formula for the area of an equilateral triangle, we can find the area of one face:
A = (√(3)/4) x 26²
A = 338.3 square millimeters (to the nearest tenth)
Since there are four faces, we can multiply the area of one face by 4:
4 x 338.3 = 1353.2 square millimeters
Therefore, the surface area of the tetrahedral die is approximately 1353 square millimeters (to the nearest ten square millimeters).
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Help please need answers now (with solutions too please)
The probability of drawing two hearts without replacement is 0.0588. The probability of drawing an ace followed by a king without replacement is 0.006.
What is probability?Probability is a way to gauge how likely or unlikely something is to happen. Usually, it is stated as a number between 0 and 1, where 0 denotes that an event is impossible and 1 denotes that it is certain to happen.
According to question:6) To find the probability of drawing two hearts without replacement, we can use the formula:
P(two hearts) = (number of ways to choose 2 hearts) / (number of ways to choose 2 cards from a deck)
As there are 13 hearts in a standard deck of 52 cards, the number of ways to choose 2 hearts is given by the combination:
13 choose 2 = 13! / (2! * (13-2)!) = 78
The number of ways to choose 2 cards from a deck of 52 cards is:
52 choose 2 = 52! / (2! * (52-2)!) = 1326
Therefore, the probability of drawing two hearts without replacement is:
P(two hearts) = 78 / 1326 ≈ 0.0588 (rounded to four decimal places)
7) To find the probability of drawing an ace followed by a king without replacement, we can use the formula:
P(ace, then king) = P(ace) * P(king|ace not drawn)
The probability of drawing an ace is given by:
P(ace) = 4/52 = 1/13
After drawing an ace from the deck, there are 51 cards remaining, of which 4 are kings. Therefore, the probability of drawing a king given that an ace has not been drawn is:
P(king|ace not drawn) = 4/51
Hence, the probability of drawing an ace followed by a king without replacement is:
P(ace, then king) = (1/13) * (4/51) ≈ 0.006 (rounded to three decimal places).
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PLEASE HELP ME WITH THIS QUESTION IF YOU DO I WILL APPRECIATE IT AND ILL GIVE BRAINLYIEST!
Justin wants to buy a frame for his painting. The frame is 22 1/2 inches wide and 26 1/2 inches long around the exterior. The wood all around the frame is exactly 2 1/2 inches wide. How big does Justin's painting need to be to fit in this frame?
The size of Justin's painting that needs to be to fit in this frame is 530 square inches
How to determine the areaIt is important to note that the formula for the area of a rectangle is expressed with the equation;
A = lw
Such that the parameters of the formula are;
A is the area of the rectanglel is the length of the rectanglew is the width of the rectangleFrom the information given, we have that;
Width of the frame = 22 1/2 inches
Length of the frame = 26 1/2 inches
But the width around the frame = 221/2 - 2 1/2 = 45/2 - 5/2 = 20 inches
Substitute the values
Area = 20(53/2)
multiply the values
Area = 530 square inches
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Can someone help me w this problem
The transformations of the functions compared to the parent function are given as follows:
C. Reflection over the x-axis, vertical stretch by a factor of 2, and shift right units.
What is a translation?A translation happens when either a figure or a function is moved horizontally or vertically on the coordinate plane.
The four translation rules for functions are defined as follows:
Translation left a units: f(x + a).Translation right a units: f(x - a).Translation up a units: f(x) + a.Translation down a units: f(x) - a.The parent function for this problem is given as follows:
y = sqrt(x).
Hence the transformations are given as follows:
Reflection over the x-axis -> multiplication by a negative number.Vertical stretch by a factor of 2 -> multiplication by a number with absolute value of 2.Shift right of 5 units: x -> x - 5.More can be learned about translations at brainly.com/question/28174785
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A letter is chosen randomly from the word CANDLESTICK.
Find each probability.
4. P(a vowel)
5. P(N or S)
6. P(not C)
The probabilities for the given events are:
P(a vowel) = 3/11
P(N or S) = 2/11
P(not C) = 9/11
How to find the probabilities?The probability is given by the quotient between the outcomes that meet the event and the total possible outcomes.
In Candlestick there are 11 letters.
4) There are 3 vowels, then this probability is:
P(a vowel) = 3/11
5) The letters N and S appear 2 times, then the probability is:
P(N or S) = 2/11
6) The letter C appears 2 times, then the other 9 letters are not C, so the probability is:
P(not C) = 9/11
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Determine the odds of rolling TWO 6-sided dice, and getting a total between the two dice that is a multiple of three. (10 pts.)
The odds of rolling two 6-sided dice and getting a total between the two dice that is a multiple of three are approximately 31%.
To determine the odds of rolling two 6-sided dice and getting a total between the two dice that is a multiple of three,
we first need to identify the possible outcomes. The possible sums of rolling two dice range from 2 to 12. We then need
to find the multiples of three within that range, which are 3, 6, 9, and 12.
Next, we need to find the number of ways that we can roll each of these multiples of three. To do this, we can create a
chart:
Sum | Ways to roll
---|---
3 | 1
6 | 5
9 | 4
12 | 1
So there are a total of 11 ways to roll a multiple of three with two dice.
To find the odds, we need to divide the number of favorable outcomes (11) by the total number of possible outcomes
when rolling two dice (36), and then convert the fraction to a percentage or a ratio.
11/36 = 0.3056 or approximately 31%
Therefore, the odds of rolling two 6-sided dice and getting a total between the two dice that is a multiple of three are approximately 31%.
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help me please before i have to submit it
Answer:
Based on the information provided that one corner of the parallelogram measures 128 degrees, we can determine the measures of the other three angles x, y, and z.
In a parallelogram, opposite angles are congruent, which means that x and z are congruent to 128 degrees.
So, x = z = 128 degrees.
The sum of the measures of the interior angles of a parallelogram is always 360 degrees. Since x and z both measure 128 degrees, the sum of x and z is 2 * 128 = 256 degrees.
Therefore, we can find the measure of y by subtracting the sum of x and z from 360 degrees:
360 degrees - 256 degrees = 104 degrees
So, y measures 104 degrees.
To summarize:
x = z = 128 degrees
y = 104 degrees
Write the equation for the line shown in the given graph. Give your answer in slope-intercept form, y=mx+b. Use points that clearly cross the interceptions of the graph paper
An equation in slope-intercept form for the line shown in the given graph is equal to y = -5x + 5.
What is the slope-intercept form?
The line with m as the slope, m, and c as the y-intercept is the graph of the linear equation y = mx + c. The values of m and c are real integers in the slope-intercept form of the linear equation.
Here, we have
Given graph and we have to find the equation for the line shown in the given graph.
First of all, we would determine the slope of this line;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (5 - 20)/(0 + 3)
Slope (m) = -15/3
Slope (m) = -5.
At data point (0, 5) and a slope of -5, a linear equation in slope-intercept form for this line can be calculated by using the point-slope form as follows:
y - y₁ = m(x - x₁)
y - 5 = -5(x - 0)
y - 5 = -5x
y = -5x + 5
Hence, an equation in slope-intercept form for the line shown in the given graph is equal to y = -5x + 5.
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Determine the point ths of the way from point A: (-3,-2) to point B. (4, -3) shown on the coordinate plane below.
Answer:
Step-by-step explanation:
To find the point that is a certain fraction of the way between two given points, we can use the midpoint formula and the scalar multiplication of vectors.
Let's first find the vector that points from point A to point B:
�
�
⃗
=
(
4
−
3
)
−
(
−
3
−
2
)
=
(
7
−
1
)
AB
=(
4
−3
)−(
−3
−2
)=(
7
−1
)
The scalar multiplication of a vector with a scalar value scales the length of the vector. To find the point that is 3/4 of the way from point A to point B, we can multiply the vector $\vec{AB}$ by 3/4:
3
4
�
�
⃗
=
3
4
(
7
−
1
)
=
(
21
4
−
3
4
)
4
3
AB
=
4
3
(
7
−1
)=(
4
21
−
4
3
)
Finally, we can add this vector to point A to get the point that is 3/4 of the way from point A to point B:
(
−
3
−
2
)
+
(
21
4
−
3
4
)
=
(
3
4
,
−
11
4
)
(
−3
−2
)+(
4
21
−
4
3
)=
(
4
3
,−
4
11
)
if you throw exactly two heads in two tosses of a coin you win $120 . if not, you pay me $37 . step 2 of 2 : if you played this game 742 times how much would you expect to win or lose? round your answer to two decimal places. losses must be expressed as negative values.
If we throw, a coin in twice, then pay off for throw exactly two heads is $120. The expected win value in the game in 742 trials is equals to the $1669.5.
We have to two tosses a coin and we gift with payouts according to results of tossing. When we throw exactly two heads in two tosses of a coin, then pay out is $120. If not throw two heads then payout is $37… Now, number of times we play the game that is trials = 742
We have to determine value of expected value to win or loss for 742 trials. First we determine the excepted value of proposition. Total possible outcomes on two tosses of a coin = 4 = {HH,TT, HT, TH}
Probability of throwing two heads = 1/4
= 0.25
Probability of not throwing two heads
= 1 - 1/4 = 3/4 = 0.75
That is when x (pay off) = $120, P( x)
= 0.25 ; x (payout) = -$37, P( X) = 0.75. Now, the excepted value formula is written as, [tex]E( x) = \sum x× P(x) [/tex]
= $120 × 0.25 - $37 ×0.75
= $2.25
So, the expected value of win with 575 trials of gane = 2.25 × 742
= 1669.5
Hence, required excepted win value is $1669.5.
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Vectors u and v are shown in the graph. vector u with initial point at the origin and terminal point at negative 10 comma negative 7 and vector v with initial point at the origin and terminal point at negative 8 comma 4 What is
[tex]proj _{v}u[/tex]
?
Answer:
im sorry i couldnt help myself
Step-by-step explanation:
Buddy punted a football during game on Friday. The height of a punted football can be modeled with the quadratic function h(x) = −.02x2 + 1.2x + 4 where x is the horizontal distance in feet from the point of impact with the kicker's foot and h is the height of the ball in feet. Buddy calculated the maximum height of his punt in the box below. Is his answer correct? If not, explain and correct the error in the your work column.
Buddy's answer of 19 feet for the maximum height of his punt is correct, based on the given quadratic function.
How to solve the question?
To determine the maximum height of the punt, we need to find the vertex of the parabolic function h(x) = −.02x² + 1.2x + 4, which represents the height of the football at any given horizontal distance x from the point of impact.
The vertex of a parabola in the form y = ax² + bx + c can be found using the formula x = -b / 2a, which gives the x-coordinate of the vertex, and then substituting that value into the function to find the corresponding y-coordinate.
In this case, we have a = -.02, b = 1.2, and c = 4. So the x-coordinate of the vertex is x = -b / 2a = -1.2 / (2*(-.02)) = 30, and the corresponding maximum height is h(30) = -.02(30)2 + 1.2(30) + 4 = 19 feet.
Therefore, Buddy's answer of 19 feet for the maximum height of his punt is correct, based on the given quadratic function.
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On October 31, Pidgeon Stones Inc. , a marble contractor, issued for cash 320,000 shares of $5 par common stock at $12, and on November 19, it issued for cash 45,000 shares of preferred stock, $60 par at $72
The journal entries fro the transaction for October 31 and November 19 are as follows:
Data Account titles Debit CreditOct. 31: Cash $3,840,000
($12 x 320,000)
Common Stock $1,600,000
($5 x 320,000)
Paid-In Capital in Excess of Par-com. $2,240,000
($3,840,000 - $1,600,000)
Data Account titles Debit CreditNov. 19: Cash $3,240,000
($72 x 45,000)
Preferred Stock $2,700,000
($60 x 45,000)
Paid-In Capital in Excess of Par-Pre. $540,000
($3,240,000 - $2,700,000)
Full question "On October 31, Pidgeon Stones Inc. , a marble contractor, issued for cash 320,000 shares of $5 par common stock at $12, and on November 19, it issued for cash 45,000 shares of preferred stock, $60 par at $72. Journalize the entries for October 31 and November 19".
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The angle of elevation from object A to object B is always
the,(__________) the angle of depression from object B to object A.
A. Greater Than
B. Less Than
C. Equal to
D. Unrelated to
What are the measures of ∠1 and ∠2?
The measure of angle 1 is 67.4°. The measure of angle 2 is 104.5°.
What is angle?An angle is the measure of the amount of rotation between two lines or two planes that meet at a point. It is typically measured in degrees or radians. An angle can be acute, meaning it is less than 90 degrees, right, meaning it is exactly 90 degrees, obtuse, meaning it is greater than 90 degrees but less than 180 degrees, or straight, meaning it is exactly 180 degrees. An angle can also be positive or negative, depending on the direction of rotation between the lines or planes. Angles are used in various fields such as mathematics, engineering, physics, and geometry.
Here,
180-121.8=58.2°
180-(58.2+17.3)=104.5°
180-104.5=75.5°
180-(75.5+37.1)=67.4°
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Which of the following is a statistical question with categorical data?
Question 1 options:
A. Do you have five siblings?
B. What color eyes do you have?
C. What is the favorite subject of sixth graders at my school?
D. What is Mrs. Christmas's favorite subject?
Answer:
A
Step-by-step explanation:
because when we say statical data we mean numerical data (asking u about number) so the answer yes i have 5 or no they r more or less.
if ||v|| is 8 what is ||-7v||
The notation "||v||" typically refers to the Euclidean norm (also known as the magnitude or length) of a vector v in a Euclidean space. The Euclidean norm of a vector v in n-dimensional space is defined as the square root of the sum of the squares of its components:
||v|| = sqrt(v1^2 + v2^2 + ... + vn^2)
Given that ||v|| = 8, we can find the Euclidean norm of -7v as follows:
||-7v|| = 7 * ||-v|| = 7 * sqrt((-v1)^2 + (-v2)^2 + ... + (-vn)^2)
Since -v has the same magnitude as v but points in the opposite direction, we can replace each vi in the above expression with -vi:
||-7v|| = 7 * sqrt((-v1)^2 + (-v2)^2 + ... + (-vn)^2) = 7 * sqrt(v1^2 + v2^2 + ... + vn^2)
But we know that ||v|| = sqrt(v1^2 + v2^2 + ... + vn^2) = 8, so we can substitute:
||-7v|| = 7 * ||v|| = 7 * 8 = 56
Therefore, ||-7v|| is 56.
A box for a loaf of
sandwich bread
10 inches long
and 5 inches
wide. The loaf is
5 inches tall.
Answer: I'm not really sure what you're trying to find but 250in³
Step-by-step explanation:
10in x 5in x 5in = 250 in³
We collect these data from 50 male students. Which variable is categorical? a. number of cigarettes smoked daily b. head circumference
c. hours of homework last week d. eye color e. number of TV sets at home
how many paths from $a$ to $b$ consist of exactly six line segments (vertical, horizontal or inclined)?
There are 14,400 paths from $a$ to $b$ consisting of exactly six line segments (vertical, horizontal or inclined).
Assuming that the distance between adjacent lattice points is equal to 1 unit, we can find the number of paths from [tex]a$ to $b$[/tex] consisting of exactly six line segments by using the concept of permutations and combinations.
To reach [tex]b$ from $a$[/tex] using exactly 6 line segments, we need to make 3 horizontal and 3 vertical moves, with each move covering a distance of 1 unit. The order in which we make these moves is important.
Out of the 6 moves, we can choose 3 moves to be horizontal and the remaining 3 to be vertical. The number of ways of doing this is given by the combination formula:
[tex]$C(6,3) = \frac{6!}{3!3!} = 20$[/tex]
Once we have selected the 3 horizontal moves and 3 vertical moves, we can arrange them in any order. The number of ways of doing this is given by the permutation formula:
[tex]$P(6,6) = 6! = 720$[/tex]
Therefore, the total number of paths from[tex]$a$ to $b$[/tex]consisting of exactly six line segments (vertical, horizontal or inclined) is given by the product of the number of ways of choosing 3 horizontal moves out of 6, and the number of ways of arranging the 6 moves:
[tex]$20 \times 720 = 14,400$[/tex]
Hence, there are 14,400 paths from $a$ to $b$ consisting of exactly six line segments (vertical, horizontal or inclined).
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There are 4096 paths from point a to point b that consist of exactly six line segments (vertical, horizontal, or inclined).
We can use the concept of permutations and combinations.
First, we need to consider the possible directions for each line segment:
vertical, horizontal, and inclined (assume inclined in both the top-right and bottom-right directions).
So there are 4 possible directions for each segment.
Since we have 6 line segments, we need to find the total number of paths that can be formed by arranging the 4
directions for the 6 segments.
We can use the formula for permutations with repetition, which is [tex]n^r[/tex], where n is the number of possible directions (4)
and r is the number of segments (6).
Plug in the values into the formula:
[tex]4^6[/tex] = 4096.
So, there are 4096 paths from point a to point b that consist of exactly six line segments (vertical, horizontal, or
inclined).
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Question 1 of 5
Find the measure of the exterior 21.
80°
65
OA. 145°
OB. 35°
O C. 15°
O D. 1001
Answer:
the answer is 145°
Step-by-step explanation:
the sum of other two non adjecent interior angle are equal to remot exterior angle . so 80° + 65° = 145°
Karissa purchased a set of LED lights online that normally sells for $90.00 but was marked down to $67.50. What is the discount rate Karissa received? (2 points)
O 10%
13%
25%
75%
Find the area of the figure. Split each part up and fin the area + add them together SHOW WORK PLS
The area of the fiqure is 132 cm².
What is area?Area is the region bounded by a plane shape.
To calculate the area of the figure, we use the formula below
Formula:
A = Area of the rectangle+ Area of the triangle+Area of the tripeziumA = LW+bh/2+h(A+B)/2...................... Equation 1Where:
L = Length of the rectangleW = Width of the rectangleb = Base of the triangleh = Height of the triangle = Height of the tripeziumA, B = The two parallel sides of the tripeziumFrom the diagram,
Given:
W = 4 cmL = 7 cmh = 8 cmb = 6 cmA = 7 cmB = 13 cmSubstitute these values into equation 1
A = (4×7)+(6×8/2)+8(7+13)/2A = 28+24+80A = 132 cm²Hence, the area is 132 cm².
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the time series component that reflects the random changes in a time series that are not caused by any other components, and tends to hide the existence of the more predictable components, is called:
The time series component that reflects the random changes in a time series that are not caused by any other components, and tends to hide the existence of the more predictable components, is called the "random" or "irregular" component.
It represents the noise or fluctuations in the time series that cannot be explained by any of the other components, such as trend, seasonality, or cyclical variations. The irregular component is also known as the "white noise" or "error" component, and it is typically modeled as a random process with zero mean and constant variance. It is important to separate out the irregular component from the other components in order to identify the underlying patterns and trends in the time series, and to make accurate forecasts and predictions.
what is white noise?
In time series analysis, "white noise" refers to a random process where the values at each point in time are independently and identically distributed with a mean of zero and a constant variance.
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Find the solution set of the inequality 4 � − 1 < 11. 4x−1<11.
Therefore , the solution of the given problem of inequality comes out to be x< 3, which denotes that x can be any real number below 3.
What is inequality, exactly?The distinction in algebra can be expressed by an amalgamation or set of two numbers since there is no indicator for it. Equity usually comes after equilibrium. The persistent gap in standards is what causes inequality. Disparity and equality are not the same thing. As was the least favourite symbol, despite the fact that its components are typically neither connected nor adjacent to one another.
Here,
We can use the procedures listed below to solve the inequality 4x - 1 11:
To isolate the term with x on one side of the inequality, add 1 to both sides of the inequality in step 1:
=> 4x - 1 + 1 < 11 + 1 4x < 12
Step 2: To find x, multiply both sides of the inequality by 4.
=> 4x/4 < 12/4 x < 3
The answer to the inequality 4x - 1 11 is therefore x< 3, which denotes that x can be any real number below 3.
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