Chapter 14, Problem 12SGA

To determine

To find the class marks.

Answer to Problem 12SGA

  $9.5,10.5,11.5,12.5,13.5$

Explanation of Solution

Given:

The table below gives the weight in ounces of the popular women’s tennis shoes.

  

Calculation:

The class marks of the data can be calculated as follows-

  $\begin{array}{l}\frac{9+10}{2}=9.5\\ \frac{10+11}{2}=10.5\\ \frac{11+12}{2}=11.5\\ \frac{12+13}{2}=12.5\\ \frac{13+14}{2}=13.5\end{array}$

Therefore, the class marks are $9.5,10.5,11.5,12.5,13.5$ .