Question

question 4
ages number of students
15 - 18 9
19 - 22 2
23 - 26 2
27 - 30 6
31 - 34 10
35 - 38 7
based on the frequency distribution above, find the relative frequency for the class with lower class limit 15
relative frequency = %
give your answer as a percent, rounded to one decimal place
question help: video
check answer

Explanation:

Step1: Calculate total number of students

$9 + 2+2 + 6+10 + 7=36$

Step2: Calculate relative frequency of the class 15 - 18

Relative frequency = $\frac{\text{Frequency of 15 - 18 class}}{\text{Total number of students}}\times100\%=\frac{9}{36}\times 100\%$
$\frac{9}{36}\times 100\% = 25.0\%$

Answer:

$25.0$