Paul Graham, FRM is analyzing the sales ...

题目

Paul Graham, FRM is analyzing the sales growth of a baby product launched three years ago by a regional company. He assesses that three factors contribute heavily towards the growth and comes up with the following results:
Y=a+1.5X₁+1.2X₂+3X₃
Sum of Squared Regression=869.76
Sum of Squared Errors=22.12

Determine what proportion of sales growth is explained by the regression results.

选项

A.0.36

B.0.98

C.0.64

D.0.55

答案

B

解析

「huixue_img/importSubject/1564169387928326144.png」