Originally Posted by

**cu4mail** Hi all, plz help me on this..

The output in units of 20 employees during one week was as follows:

65, 69, 70, 71, 70, 68, 69, 67, 70, 68

72, 71, 69, 74, 70, 73, 71, 67, 69, 70

a) Start doing tabulation of given data. Make 5 classes by using suitable class interval.

b) Make the frequency distribution.

c) Also make the column of class mark.

d) Also find out the mean by constructing relevant column “f X”

e) Also compute relative frequency distribution and cumulative frequency distribution.