You are researching a species of grasshopper and are interested in how far it can jump. You have the jump distances for 10 grasshoppers displayed below.


Jump distances (inches): 31.5, 24.8, 32.2, 34.6, 29, 28.9, 37.5, 23.8, 25.2, 29
Checksum: 296.5


Find the following. Round your answers to two decimal places. 

a) mean:


b) mean absolute deviation (MAD):