The heights (in inches) for a sample of 20 male adults are 62, 82, 79, 76, 73, 70, 67, 64, 61, 80, 79, 75, 60, 60, 60, 71, 71, 74, 74, 74
Draw the frequency_polygon for these data using an initial class boundary of 59.5 and a class width of 5. Note that you can add or remove classes from the figure. Label each class with its midpoint.