OD
(Choose 1 answer)
(See picture)
FPT Retail sells IT products in their shops and wanted to examine the relationship between price and demand. The price of a smart phone was adjusted each week and the weekly sales were recorded in the table.
A. 0.92
B. None of the other choices is correct
Find the sample correlation coefficient.
C. 0.5
D. -0.92
E. -0.5
Price $120 $110 $100
Sales
7
4
10
Exit 27
