Question

ruby collects data on the number of hours it takes her classmates to complete an art project. the histogram shows the data. how many classmates answered rubys question? 26 classmates

Explanation:

Step1: Read the frequencies from the histogram

The frequencies for each interval are \(2\), \(4\), \(7\), \(9\), \(6\).

Step2: Sum up the frequencies

$$2 + 4+7 + 9+6$$

$$=(2 + 4)+7+(9 + 6)$$

$$=6+7 + 15$$

$$=13+15$$

$$=28$$

Answer:

\(28\) classmates