Question

In a sample of 75 randomly selected students at a school, 32 are female. There are 1,371 students in the school. Using the results, predict the number of females in the school. Round to the nearest whole number.

Answer 1

585

Explanation:

let 'f' = females

based on sample, set up this proportion:

32/75 = f/1371

cross-multiply:

75f = 1371(32)

75f = 43872

f = 584.96