[EX02-217] The distribution of credit hours, per student, taken this semester at a certain college was as follows:

Credit Hours Frequency Credit Hours Frequency 3 75 15 400 6 150 16 1050 8 30 17 750 9 50 18 515 12 70 19 120 14 300 20 60

a. Draw a histogram of the data.

b. Find the five measures of central tendency.

c. Find Q1 and Q3.

d. Find P15 and P12.

e. Find the three measures of dispersion (range, s2, and s).