1. Assume the correlation between height and weight for the adults is +0.70. What percent of variability in weight is predicted by relationship with height?
A. 70%
B. 30%
C. 35%
D. 49%
2. If the value of correlation is r = -1.00, then all of the data points on the scatter plot would fall on the straight line.
3. The correlation rule describes that if X and Y are correlated, X has caused Y.
4. A linear regression
A. is line that best fits on scatter plot.
B. is an equation employed to predict a y score from an x.
C. can't be used if r = 0.
D. all of above.
5. What is the correlation?