A random sample of 28 professionals in a large city were surveyed about the length of their daily commute. The data (in minutes) are shown below. [12 pts]20 35 42 52 65 20 6022 20 41 25 28 27 5049 24 37 23 24 32 4447 58 30 32 48 55 58a. Find the mean and standard deviation for these data.b. Find the 5 number summary for these data.c. Make a stem/leaf plot for this data using the first digit as the stem and the second digit as the leaves.