To find the relative frequency of 7th graders who prefer mountains, you would use the formula:
Relative frequency = (# of 7th graders who prefer mountains) / (Total # of students)
Plugging in the values from the table:
Relative frequency = 40 / 310 ≈ 0.129
Convert to a percentage by multiplying by 100:
0.129 * 100 ≈ 12.9%
Therefore, the relative frequency of the percent of 7th graders who prefer mountains is approximately 12.9%, which rounds to 13% when rounded to the nearest tenth.
None of the given options are correct.
Use the table to answer the question.
Students Seacoast Mountains Totals
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
36.4%
36.4%
40%
40%
55%
55%
26.7%
26.7%
1 answer