There is a population of three people: xerxes, yasmin, and zoe. [note: this is a population, not a sample.] they are asked how many books they read last month. xerxes read 2 books, yasmin read 4 books, and zoe read 12 books. we are too lazy to poll the entire population, so we take a sample of two (with replacement and order matters). draw the sampling distribution of the mean of a sample of size two.

asdfghkl

step-by-step explanation:

asdfghkl

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula