14
QuizMultiple Choice

Comparing Box Plots — Unit test

Question 14 • Math 7 B (M12 25/26 S2)

Harold took five different samples of thirty-five randomly selected students from the 520 students he surveyed. The means of the samples are shown below.SampleMeanSample 13.4Sample 23.2Sample 34.1Sample 44.6Sample 53.1The predicted mean of the population will fall between 3.1 and _______.

Answer
A
1.5
B
3.4
C
3.7
D
4.6

Explanation

The five sample means range from 3.1 to 4.6. Since the question asks for the upper end of the interval beginning at 3.1, use the largest sample mean, 4.6. The predicted population mean will fall between 3.1 and 4.6.

AI-written and checked against the verified answer.

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