The following are the lengths of stay (in days) for a random sample of 15 patients discharged from a particular hospital: 13, 9, 5, 11, 6, 3, 12, 9, 9, 9, 5, 5, 5, 12, 12 Send data to calculator Draw the frequency polygon for these data using an initial class boundary of 2.5, an ending class boundary of 14.5 and 4 classes of equal width. Note that you can add or remove classes from the figure. Label each class with its midpoint. Frequency 1:10 10:0