Question: A frequency distribution was constructed for the ages of all 25 of the CEO's of the Company X. To answer the parts of this problem, use the frequency distribution given below.

Ages Frequency

41-45 5

46-50 8

51-55 9

56-60 3

a) State the modal class or calculate the modal age of a CEO.

b) Calculate the mean age of a CEO of this company.

c) Calculate the standard deviation in the ages of the CEO's of this company.