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

a 100 house hold

Answer 2

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.