Question

Construct a frequency table with class-intervals 0-5 (5 not included) of the following marks obtained by a group of 30 students in an examination.
0, 5, 7, 10, 12, 15, 20, 22, 25, 27, 8, 11, 17, 3, 6, 9, 17, 19, 21, 29, 31, 35, 37, 40, 42,45, 49, 4, 50, 16.

Answer 1

The frequency table with class intervals 0$-$5,5$-$10,10$-$15,...,50$-$55 is given below:

Marks	Tally Marks	Frequency
0$-$5	|||	3
5$-$10	||||	5
10$-$15	|||	3
15$-$20	||||	5
20$-$25	|||	3
25$-$30	|||	3
30$-$35	|	1
35$-$40	||	2
40$-$45	||	2
45$-$50	||	2
50$-$55	|	1