Question

the histogram to the right represents the weights (in pounds) of members of a certain high - school debate team. how many team members are included in the histogram? the histogram represents debate team members.

Explanation:

Step1: Identify bar - heights

Read the height of each bar in the histogram. Heights are 1, 3, 3, 5, 3, 3, 3 respectively for weight intervals 110 - 120, 120 - 130, 130 - 140, 140 - 150, 150 - 160, 160 - 170.

Step2: Sum the bar - heights

Add up the heights of all bars. $1 + 3+3 + 5+3 + 3+3$.
$1+3+3 + 5+3+3+3=(1 + 5)+(3\times5)=6 + 15=21$.

Answer:

21