Suppose r2 = 0.30. Since (y - )2 is used in estimating the overall variability of

Question:

Suppose r2 = 0.30. Since ∑ (y - )2 is used in estimating the overall variability of the y values and ∑ (y - )2 is used in estimating the residual variability at any fixed value of x , explain why approximately the estimated variance of the conditional of y for a given x is 30% smaller than the estimated variance of the marginal of y. Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...