Question

commute time
frequency (number of students)
0-9 10-19 20-29 30-39 40-49 50-59
minutes
how many students take less than 40 minutes to get to school?
answer attempt 1 out of 2

Explanation:

Step1: Identify relevant intervals

Intervals less than 40 minutes: 0 - 9, 10 - 19, 20 - 29, 30 - 39.

Step2: Get frequencies for each interval

0 - 9: 4, 10 - 19: 6, 20 - 29: 2, 30 - 39: 1.

Step3: Sum the frequencies

$4 + 6 + 2 + 1 = 13$.

Answer:

13