Here are the shopping times in minutes for a sample of 16 shoppers at a particular grocery store 26 23 44 41 38 35 40 40 40 37 37 34 34 31 31 31 Send data to calculator Draw the frequency polygon for these data using an initial class boundary of 22 5 an ending class boundary of 47 5 and 5 classes of equal width Note that you can add or remove classes from the figure Label each class with its midpoint Frequency 6 34 X