1.) Which of the following bivariate data is positively correlated?

A. Cellphone battery and hours of usage

B. Speed of the car and the time to reach a place

C. Size of family and expenses

D. Height and grade

2.) The correlation coefficient between company sales and advertising expenses is 0.72. Which of the following is true about the bivariate data?

A. There is weak positive correlation between company sales and advertising expenses

B. There is moderate positive correlation between company sales and advertising expenses

C. There is a high positive correlation between company sales and advertising expenses

D. There is very high positive correlation between company sales and advertising expenses

3.) What is the correlation between variables when the y variable tends to decrease as the x variable increases?

A. Positive Correlation

B. Negative Correlation

C. No Correlation

D. Regression