You have found the following ages (in years) of 4 zebras. The zebras are randomly selected from the 45 zebras at your local zoo: 7, 1, 9, 14

Based on your sample, what is the average age of the zebras?
What is the estimated variance of the ages? You may round your answers to the nearest tenth.

Average age: years old?

Variance: years?​

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

step-by-step explanation:

two pairs of adjacent sides are of equal length. this implies that one diagonal divides the kite into congruent triangles, and so the angles between the two pairs of equal sides are equal in measure. it also implies that the diagonals are perpendicular.