Question

The table given below shows the ages of patients being treated in a hospital. Construct a cumulative frequency distribution table for the same:

Age	No. of patients
10 - 20	90
20 - 30	50
30 - 40	60
40 - 50	80
50 - 60	50
60 - 70	30

Answer 1

Age	No. of patients	Cum. Frequency
10 - 20	90	90
20 - 30	50	140
30 - 40	60	200
40 - 50	80	280
50 - 60	50	330
60 - 70	30	360