Question

student absences
use the table to complete the statements. the relative frequency of 7th graders who are present is
the relative frequency of all students who are absent is
present absent total
7th grade 44 4 48
8th grade 39 1 40
9th grade 26 6 32
total 109 11 120
3%
9%
11%
19%

Explanation:

Step1: Calculate relative - frequency of 7th graders present

Relative frequency = $\frac{\text{Number of 7th - graders present}}{\text{Total number of 7th - graders}}$
Relative frequency = $\frac{44}{48}=\frac{11}{12}\approx0.9167$

Step2: Calculate relative - frequency of all absent students

Relative frequency = $\frac{\text{Total number of absent students}}{\text{Total number of students}}$
Relative frequency = $\frac{11}{120}\approx0.0917 = 9.17\%\approx9\%$

Answer:

The relative frequency of 7th graders who are present is $\frac{11}{12}$; The relative frequency of all students who are absent is 9%