SELECT ALL THAT APPLY.
-In a population of 250 students,60% are Whites,20% are Latinos,15% are Blacks,and 5% others.In a proportionate stratified random sample of 120,
A)the number of Whites selected is 72.
B)the number of Blacks selected is 50.
C)the number of Latinos selected is 37.
D)the number of other racial and ethnicity background selected is 6.

Question

Quizplus · Accepted Answer

- A: 60% of 250 is 150. 150 out of 250 is the same proportion as 72 out of 120, so 72 Whites are selected.- D: 5% of 250 is 12.5, rounding to the nearest whole number gives 12 or 13, but since we're working with a sample of 120, 5% of 120 is exactly 6, matching the proportion in the population.