The relative frequency is the proportion of students in each grade level compared to the total number of students.
Relative frequency of 7th graders who prefer mountains: 40 students / 300 total students = 0.1333 or 13.3%
Relative frequency of 8th graders who prefer mountains: 110 students / 300 total students = 0.3667 or 36.7%
Students Seacoast Mountains Totals
7th Grade 60 40 100
8th Grade 90 110 200
Totals 150 150 300
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.
3 answers
I forgot, here is the choices
90% of 8th-grade campers preferred the seacoast.
40% of the people who preferred the seacoast were 7th graders.
32% of 7th-grade campers preferred the mountains.
70% of the people who preferred mountains were 8th graders.
90% of 8th-grade campers preferred the seacoast.
40% of the people who preferred the seacoast were 7th graders.
32% of 7th-grade campers preferred the mountains.
70% of the people who preferred mountains were 8th graders.
Out of the options provided:
- The correct answer is: 90% of 8th-grade campers preferred the seacoast.
- 40% of the people who preferred the seacoast were 7th graders: This is incorrect, as the actual proportion is 13.3% (40 students out of 300 total) of the total campers.
- 32% of 7th-grade campers preferred the mountains: This is incorrect, as the actual proportion is 13.3% (40 students out of 300 total) of the total campers.
- 70% of the people who preferred mountains were 8th graders: This is incorrect, as the actual proportion is 36.7% (110 students out of 300 total) of the total campers.
- The correct answer is: 90% of 8th-grade campers preferred the seacoast.
- 40% of the people who preferred the seacoast were 7th graders: This is incorrect, as the actual proportion is 13.3% (40 students out of 300 total) of the total campers.
- 32% of 7th-grade campers preferred the mountains: This is incorrect, as the actual proportion is 13.3% (40 students out of 300 total) of the total campers.
- 70% of the people who preferred mountains were 8th graders: This is incorrect, as the actual proportion is 36.7% (110 students out of 300 total) of the total campers.