4
QuizMultiple Choice

Inferences and Predictions

Question 4 • Pre-Algebra B

While at summer camp, Mike asked a random camper from each of the 12 cabins how many siblings he or she had. The results below display the responses.3, 2, 0, 1, 0, 2, 3, 4, 1, 2, 2, 1If there are 48 campers altogether, use Mike’s data to infer the mean of the population. What is the mean number of siblings for the population rounded to the nearest unit?

Answer
A
1 sibling
B
2 siblings
C
3 siblings
D
4 siblings

Explanation

Use the mean of the 12 sampled campers to estimate the population mean. Their sibling counts total 21, so the sample mean is 21 ÷ 12 = 1.75 siblings. Rounded to the nearest whole number, that is 2 siblings, which is choice B.

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