Question

The following are the marks obtained by 30 students in an examination.

15	20	8	9	10
16	17	20	24	30
44	47	38	36	40
27	25	28	30	19
7	11	21	31	41
37	47	23	20	17

Taking class intervals 0-10, 10-20, ……… 40-50 ; construct a frequency table.

Answer 1

Class Intervals	Tally Marks	Frequency
0-10	|||	3
10-20	|||| ||	7
20-30	|||| ||||	9
30-40	|||| |	6
40-50	||||	5