posted by Stuart

If the total variation in y values is 200, and the variation explained by regression line is 180, then the coefficient of determination is equal to __________.

A) 1.11
B) 0.90
C) 0.81
D) 1.21

I picked D 1.21

1. MathGuru

I'll give you a hint:
Coefficient of Determination is explained variation divided by total variation (which is the correlation coefficient squared).

I'll let you take it from there.

2. Stuart

Thanks again MathGuru

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