Mr. Jacobs is going to make a histogram of the test scores from the last math test he gave. He plans to first organize the data
into a stem-and-leaf plot and then make the histogram from the stem-and-leaf plot. The test scores are listed below. 79, 82, 65, 61, 94, 97, 84, 77, 89, 91, 90, 83, 99, 71, 68, 77, 87, 85