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

Explanation:

Step1: Recall relative - frequency formula

Relative frequency = $\frac{\text{Frequency of the event}}{\text{Total frequency of the group}}$

Step2: Calculate relative frequency of 7th - graders who are present

The number of 7th - graders who are present is 44, and the total number of 7th - graders is 48. So the relative frequency is $\frac{44}{48}=\frac{11}{12}\approx0.92 = 92\%$

Step3: Calculate relative frequency of all students who are absent

The number of all students who are absent is 11, and the total number of students is 120. So the relative frequency is $\frac{11}{120}\approx0.092\approx9.2\%$ (not relevant to the options for the first part but shown for full - understanding).

Answer:

92%