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.
Responses
55%
55%
26.7%
26.7%
40%
40%
36.4%
To determine the relative frequency of the percent of 7th graders who prefer mountains, we use the formula:
Relative Frequency = (# of 7th graders who prefer mountains) / (Total # of students)
In this case, the number of 7th graders who prefer mountains is 40, and the total number of students is 310.
Relative Frequency = 40 / 310 = 0.129
Converting the relative frequency to a percentage by multiplying by 100:
0.129 * 100 = 12.9%
Rounding to the nearest tenth gives us 13%.
Therefore, the correct answer is not listed in the options provided. The closest option is 26.7%, but the correct answer should be 13%.