The miles per gallon (mpg) for each of 20 medium-sized cars selected from a production line during the month of March are given below.

25.1	23.3	25.6	25.7
22.2	26.4	27.3	29.0
26.7	24.7	28.2	25.2
27.9	26.7	26.4	26.2
26.9	24.2	24.9	26.6

What are the maximum and minimum miles per gallon?

Construct a relative frequency histogram for these data.

How would you describe the shape of the distribution?

Find the mean (in mpg).

Find the standard deviation (in mpg). (Round your answer to three decimal places.)