As part of an effort to reduce patient costs, a hospital analyzes the number of visits by a nurse for 13 patients over a ten-day period. The average number of nurse visits per day for these patients is given below. Draw a histogram for these values using 4 classes. Use the black dots to adjust the edges of the bars if necessary. Use the minimum value in the data set as the lowest class limit. 3.6, 3.7, 4.0, 4.2, 4.3, 4.6, 5.1, 5.2, 5.5, 6.7, 7.2, 8.7, 13.0