Question

Construct a cumulative frequency distribution table from the frequency table given below:
( i )

Class Interval	Frequency
0 - 8	9
8 - 16	13
16 - 24	12
24 - 32	7
32 - 40	15

( ii )

Class Interval	Frequency
1 - 10	12
11 - 20	18
21 - 30	23
31 - 40	15
41 - 50	10

Answer 1

(i) The cumulative frequency distribution table is

C . I	C.f
0 - 8	9
8 - 16	22
16 - 24	34
24 - 32	41
32 - 40	56

(ii)The cumulative frequency distribution table is

C.I	C..f
1 - 10	12