Relative frequencies quick check students seacoast mountains totals 7th grade 70 4110 eighth grade 90 110 200 total 160 150 310 determine the relative frequency of the percent of 7th graders to confirm mountains around the percentage to the nearest tenth 55 26.7 40% 36.4
To find the relative frequency of 7th graders to confirm mountains, we first need to calculate the total number of students who answered "mountains":
7th grade: 70 students
8th grade: 110 students
Total students who answered "mountains": 70 + 110 = 180 students
Now we will calculate the relative frequency of 7th graders who answered "mountains":
Relative Frequency = (Number of 7th graders who answered "mountains" / Total number of students who answered "mountains") x 100
Relative Frequency = (70 / 180) x 100
Relative Frequency = 0.3889 x 100
Relative Frequency = 38.89%
Therefore, the relative frequency of 7th graders who answered "mountains" is 38.89%, which when rounded to the nearest tenth is 38.9%.