Formula for the mean deviation from the median is as follows:MD = n1​ ∑i = 1n​ ∣ di​ ∣,  where  ∣ di​ ∣ = ∣ xi​ − M ∣Arranging the data in ascending order for finding the median:15.2, 27.9, 30.2, 32.5, 40, 52.3, 52.8, 55.2, 72.9, 79Here, n = 10. Therefore, median is the average of the fifth and the sixth observations.M = 240 + 52 . 3​ = 46 . 15xi​∣ di​ ∣ = ∣ xi​ − 46 . 15 ∣406.1552.36.1555.29.0572.926.7552.86.657932.8532.513.6515.230.9527.918.2530.215.95Total166.4MD = 101​ × 166.4 = 16.64Mean deviation from median in 16.64cm.