6) Multiple Choice (ONE answer) The correlation coefficient, r, between variables x and y is -0.9. Which statement correctly justifies the type of association between x and y? A. They have a weak negative linear association because the correlation coefficient is negative. They have a strong negative linear association because the correlation coefficient is close to -1. C. They have a strong positive linear association because the correlation coefficient has a large value. D. They have a nonlinear association because the correlation coefficient is negative. B.

Q: The table shows the money earned from selling ice cream at a Galveston restaurant as it relates to…

A: Given : Temperature (Fahrenheit) Ice Cream Sales (Dollars) 58 210 61 240 71 515 78…

Q: 7. Find correlation coefficient 'r' of the folling equation. 4x + 5y = 18 3x + 12y = 32

A: Given: we have two regression lines as below 1] 4x+5y = 10          that is  4x+5y-18 =0…

Q: 0.3. Calculate co-efficient of correlation between x & y by direct method, when x= 78 89 97 69 59 79…

A:

Q: If the correlation coefficient is -1, then the relation is a ___

A: here use basic of correlation coefficient

Q: Economics. Calculate the Rank co-efficient of correlation. Accountancy (X): Economics (Y): 25 30 38…

A:

Q: State with reasons whether the following statements are true or false. 1. Coefficient of correlation…

A:

Q: 3. If X and Y have the relation X + Y = 2 then the correlation of X and Y (p) is -1. True or False?…

A:

Q: A large sample of data is collected in order to study the relationship between the two variables X…

A: A large sample of data is collected in order to study the relationship between the two variables X…

Q: Two variables are found to have a strong positive linear correlation. Pick the correct statement. An…

A: Given that  Last option is the correct choice  An increase in one variable causes an increase in the…

Q: Based on data from a study of the association betweenmiles driven and gallons of gasoline used, let…

A: Properties of correlation: The sign of the correlation coefficient indicates the direction of the…

Q: One of the four choices are the value of the correlation for this situation. The correlation is: 31…

A: We have an upward sloping graph. Graph of the positive correlation is a upward sloping graph…

Q: Let the coefficient of correlation of two variables X and Y be larger than zero. What will be the…

A: GIven, The coefficient of correlation of two variables X and Y be larger than zero.             To…

Q: 3. Given 8X – 10Y + 66 = 0 and 40X – 18Y = 214. Find the correlation coefficient, r.

A: Given equations is8x-10y+66=040x-18y=214

Q: 3. Find rank correlation co-efficient and comment Marks in Mathematics (x): 60 70 50 40 80 90 85 96…

A:

Q: 8) ŷ = 0.36 for the relationship between income (below average, average, above average) and…

A: Given: Gamma cap : measure of association between income and happiness = 0.36 95% CI of gamma = […

Q: Find the linear correlation coefficient, r, then determine whether there is sufficient evidence to…

A:

Q: Assume that the computed correlation between x and y is -0.13. Suppose we define new variable s = -x…

A:

Q: Identify the type of correlation. 94Y 8- 7-1 6- 10 4 3- 2- 1- Price per Pizza Class Demand for Pizza…

A: Here we have to identify the correct statement for given scatter plot

Q: 15. Find 'r'. 2х + 5у — 11 5x + 12y = 21 || ||

A: We are given the linear equations as:         2x + 5y = 11   =>  y = 2.2 - 0.4x    ----- (1)…

Q: 9. Tell whether the correlation coefficient would be closest to -1, 0 or 1. a. b. 150 150 150 100…

A: Given : Three diagram :

Q: A study was conducted to identify the relationship between X and Y among employees in a…

A: Solution-: Let, X=Training and Y=Performance We have following table: Participants X Y A 9 86…

Q: 2. Calculate Karl Pearsons co-efficient of correlation from the students. n Inches: x = 62 58 65 y =…

A: Given: The values are as follows x y 62 50 58 43 65 51 63 52 56 48 59 51 60 53…

Q: Which one of these describes a positive correlation?   A) Increases in X tend to be accompanied by…

A: We have given the multiple choice question about the correlation coefficient. Which one of these…

Q: Based on data from a studey of association between miles driven and gallons of gasoline used, let r1…

A: Given that  r1 = Cor(miles, gallons), r2 = Cor(gallon, miles)

Q: 5. The scatter plot shows the ages of one kind of automobile at a used car lot and its resale value…

A: As the scatter plot shows that the resale value decreases linearly with the year increases.

Q: Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the…

A: The table provided in the question is as follows:-Row 110203244606172Row 2153173151185190109165

Q: The slope b and the correlation r always have the same sign. For example, if the correlation is…

A: Given: Statement: sign of slope and correlation always have the same sign.

Q: Which of the following statements is always true? A.If the correation coefficent r = 0, then this…

A: The correlation coefficient(r) value always between -1 ≤ r ≤ 1.

Q: !) Sketch scatter graphs to illustrate the following correlation coefficients, describe your graphs…

A: Note: According to Bartleby guidelines expert solve only one question and maximum 3 subpart of the…

Q: Match the following choices with the given diagrams. A. Positive linear correlation B. Negative…

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Q: Two pair misread values. A computer while calculating she correlation coefficient.between two…

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Q: Calculate Correlation Co-efficient from the marks secured by x & y. Marks secured by x = 40 50 55 58…

A:

Q: X 1.3 -1.2 -0.1 0.5 -0.8 Y 1.6 -2.1 -0.2 0.3 -0.6

A: Given: Sample size(n)=5