[EX02-223] The earnings per share for 40 firms in the radio and transmitting equipment industry follow:

4.62 0.10 1.29 7.25 6.04 3.20 9.56 4.90 4.22 3.71 0.25 1.34 2.11 5.39 0.84 0.19 3.72 2.27 2.08 1.12 1.07 2.50 2.14 3.46 1.91 7.05 5.10 1.80 0.91 0.50 5.56 1.62 1.36 1.93 2.05 2.75 3.58 0.44 3.15 1.93

a. Prepare a frequency distribution and a frequency histogram for these data.

b. Which class of your frequency distribution contains the median?