How do I find the answer Why reason behind that answer A Abo

How do I find the answer? Why (reason behind that answer)

A.) About 43% of the sample variation in number of man-hours can be explained by the simple linear model.

Solution

The coefficient of determination tells you the proportion of the variation in y that is explained by the variation in x.

Thus, as r^2 = 0.43,

OPTION A: A.) About 43% of the sample variation in number of man-hours can be explained by the simple linear model. [ANSWER]