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
Gloria surveyed all of the campers to determine their preferred field trip. The results are displayed in the table. Which of the following is a relative frequency that can be found with the table? Round the percentage to the nearest tenth.
The relative frequency of 7th graders who prefer the Mountains field trip can be found as follows:
Relative frequency = (Number of 7th graders who prefer Mountains) / (Total number of students)
Relative frequency = 40 / 310
Relative frequency = 0.129
Rounded to the nearest tenth, the relative frequency is 12.9%