question_answer

Following are the number of calls received at an telephone booth during the various days of the week. The data is given as below. Find the mean deviation about the mean of the data.             

	5	7	9	11	13	15
	8	6	2	2	2	6

A)  4.39

B)  3.32

C)  4.33

D)  3.57

E)  None of these