Question

The marks of 24 candidates in the subject mathematics are given below:

45	48	15	23	30	35	40	11
29	0	3	12	48	50	18	30
15	30	11	42	23	2	3	44

The maximum marks are 50. Make a frequency distribution taking class intervals 0 – 10, 10-20…

Answer 1

The frequency table for the given distribution is



In the above frequency distribution, the marks 30 are present in class interval 30 – 40 and not in 20 – 30.
Similarly, marks 40 are present in the class interval 40 – 50 and not in 30 – 40.