Question

The correlation between a​ cereal's fiber and potassium contents is requals= what fraction of the variability in potassium is accounted for by the amount of fiber that servings​ contain?

Answer 1

THe answer is R=.9030

Answer 2

I found the whole exercise on the internet and R=0.903.
According to mathematics, the variability in potassium can be explained by the amount of fibre that the servings contain. By doing
`R^(2)` we find that fraction.

`0.903^(2)`=0.8154