3) The file contains the overall miles per gallon (MPG) of 2010 family sedans: 24 21 22 23 24 34 34 34 20 20 22 22 44 32 20 20 22 20 39 20 Source: Data extracted from "Vehicle Ratings," Consumer Reports, April 2010, p. 29.
a) Compute the mean, median, and mode.
b) Compute the variance, standard deviation, and range.
c) Are the data skewed? If so, how?