13. According to an Environmental Protection Agency, a sample of 10 subcompact models shows the following estimated values for highway fuel economy (mpg): 40, 33, 32, 30, 27, 29, 27, 23, 21, and 10....

13. According to an Environmental Protection Agency, a sample of 10 subcompact models shows the
following estimated values for highway fuel economy (mpg): 40, 33, 32, 30, 27, 29, 27, 23, 21,

and 10. For these sample data, determine the following and interpret the data
a. The mean, median and mode
b. The standard deviation and variance.