Question

the following histogram summarizes the recorded number of push - ups that a group of fitness instructors completed in a certain time period. each interval contains possible values at the left endpoint up to but not including the right endpoint. distribution of number of push - ups what is the total number of fitness instructors represented in the histogram who completed 57 or more push - ups? enter your answer in the space provided.

Explanation:

Step1: Identify relevant intervals

Intervals are 57 - 60, 60 - 63, 63 - 66, 66 - 69, 69 - 72.

Step2: Sum up frequencies

$6 + 4+ 1+0 + 1=12$

Answer:

12