Students Seacoast Mountains Totals

Question

7th Grade 70 40 110
8th Grade 90 110 200
Totals 160 150 310
Determine the relative frequency of the percent of 7th graders who prefer mountains. Round the percentage to the nearest tenth.

(1 point)
Responses

A. 36.4%
36.4%

B. 26.7%
26.7%

C. 55%
55%

D. 40%
40%
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Answer 1

To determine the relative frequency of the percent of 7th graders who prefer mountains, we need to use the formula:

Relative Frequency = (Number of 7th graders who prefer mountains / Total number of students) * 100

Number of 7th graders who prefer mountains = 40
Total number of students = 310

Relative Frequency = (40 / 310) * 100
Relative Frequency = 0.129 * 100
Relative Frequency = 12.9%

Rounded to the nearest tenth, the relative frequency of the percent of 7th graders who prefer mountains is 12.9%, which is closest to:
B. 26.7%