Question

Prepare a frequency distribution by inclusive method taking class interval of 7 from the following data:

28	17	15	22	29	21	23	27	18	12	7	2	9	4
1	8	3	10	5	20	16	12	8	4	33	27	21	15
3	36	27	18	9	2	4	6	32	31	29	18	14	13
15	11	9	7	1	5	37	32	28	26	24	20	19	25
19	20	6	9

Answer 1

Class Interval	Tally marks	Frequency
0 – 7		15
8 – 15		15
16 – 23		14
24 – 31		11
32 – 39		5
Total		60