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.
The relative frequency can be calculated by dividing the number of 7th graders who prefer mountains by the total number of students.
Relative frequency = (40 / 310) * 100 = 12.9%
Therefore, the percentage of 7th graders who prefer mountains is approximately 12.9%.