Determine the first, second, and third quartiles for the data in Exercise 3.21; then calculate the interquartile

Question:

Determine the first, second, and third quartiles for the data in Exercise 3.21; then calculate the interquartile range and the quartile deviation.
Exercise 3.21

According to the U.S. 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:

a. The mean, median, range, and midrange.

b. The mean absolute deviation.

c. The standard deviation and variance.