Download presentation

Presentation is loading. Please wait.

1
AP Statistics Chapter 3 Review

2
1. As the ellipse formed by points on a scatterplot becomes thinner, the strength of the correlation between the scores: 10 Becomes lower Becomes higher Remains constant Becomes zero 1 2 3 4 5

3
**2. The lowest strength of correlation of the following is:**

0.26 -0.45 0.05 -0.90 10 1 2 3 4 5

4
**3. The following are resistant to outliers:**

Least squares regression line Correlation coefficient Both of the above Neither of the above It depends 10 1 2 3 4 5

5
**4. Which of the following would not be a correct interpretation of r = -.30?**

Variables are inversely related. Coefficient of determination is .09. 30% of variation between variables is linear. There is a weak relationship between the variables. All above are correct. 10 1 2 3 4 5

6
**5. Equation for LSRL is y-hat = 1. 3 +0**

5. Equation for LSRL is y-hat = x What is the residual for the point (4,7)? 2.78 -2.78 1.30 -4.22 7.00 10 1 2 3 4 5

7
**6. Imagine two boys on a seesaw moving up and down**

6. Imagine two boys on a seesaw moving up and down. The r value of their heights off the ground would be: 0.00 1.00 -1.00 0.50 -0.50 10 1 2 3 4 5

8
**7. If the correlation between X and Y is 0.94, which is true?**

10 X causes Y Y causes X Low scores on X are associated with high scores on Y Low scores on X are associated with low scores on Y. 1 2 3 4 5

9
**8. A residual plot for linear data looks linear.**

10 True False 1 2 3 4 5

10
**9. Test A results correlate -0**

9. Test A results correlate with results on the Nat’l Merit Scholarship exam. Because of the negative sign, this relationship is considered to be weak. 10 True False 1 2 3 4 5

11
**10. Switching the explanatory and response variables on a scatterplot affects the**

Correlation LSRL Both the above Neither the above It depends 1 2 3 4 5

12
**11. If the coefficient of determination between two variables is 0**

11. If the coefficient of determination between two variables is 0.81, then the correlation is 0.90. 10 True False It depends 1 2 3 4 5

13
**12. A point on a scatterplot could represent:**

Two scores of 2 people. One score made by 2 different people. Two different scores of 1 person. One score of 1 person. 10 1 2 3 4 5

Similar presentations

OK

Residuals, Residual Plots, & Influential points. Residuals (error) - The vertical deviation between the observations & the LSRL always zerothe sum of.

Residuals, Residual Plots, & Influential points. Residuals (error) - The vertical deviation between the observations & the LSRL always zerothe sum of.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on barack obama leadership quotes Ppt on different mode of transport Ppt on digital media marketing Ppt on viruses and bacteria's images Ppt on types of forest in india Ppt on social networking dangers Ppt on the rise of nationalism in europe class 10 Ppt on food processing technology Ppt on any grammar topic in hindi Ppt on rural retailing in india