The true quadratic regression function is e{y}=15+20x+3x2. the fitted linear regression function is y^=13+40x, for which e{b0}=10 and e{b1}=45. what are the bias and sampling error components of the mean squared error for xi=10 and xi=20?

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

1. statement- ca is parallel to db and e is the midpoint of ad reason- given2. statement- reason- alternate interior angles3. statement- de is congruent to ae reason- definition of midpoint4. statement- triangle aec is congruent to triangle deb reason- asa (angle side angle)