Question

Question 3
The scores (out of 100) obtained by 33 students in a mathematics test are as follows.
69, 48, 84, 58, 48, 73, 83, 48, 66, 58, 84, 66, 64, 71, 64, 66, 69, 66, 83, 66, 69, 71, 81, 71, 73, 69, 66, 66, 64, 58, 64, 69, 69.
Represent this data in the form of a frequency distribution.

Answer 1

The number of students who have the same marks in mathematics is the frequency of that mark.
A frequency distribution table for the given data is given below.

$\begin{array}{ccc}\text{Scores}& \text{Tally marks}& \text{Frequency}\\ 48& |||& 3\\ 58& |||& 3\\ 64& ||||& 4\\ 66& \text{/}||||||& 7\\ 69& \text{/}|||||& 6\\ 71& |||& 3\\ 73& ||& 2\\ 81& |& 1\\ 83& ||& 2\\ 84& ||& 2\\ \text{Total}& & 33\end{array}$