Emily wants to determine the relationship between the number of people in a household (x) and the last 4 digits of their phone number (y). She randomly selects 100 households in her town and examines the data.

Question

Emily wants to determine the relationship between the number of people in a household (x) and the last 4 digits of their phone number (y). She randomly selects 100 households in her town and examines the data.

What is the ,begin emphasis,best,end emphasis, estimate of the correlation coefficient between x and y?

Answer options with 4 options
A.
negative 0.5

B.
0

C.
0.5

D.
1

Answer 1

Without the data on the number of people in a household and the corresponding last 4 digits of their phone number, it is not possible to determine the correlation coefficient between x and y. Therefore, the best estimate cannot be determined based on the information given.