Question

Construct a frequency table from the following data:
$\begin{array}{cc}\text{Marks}& \text{No. of students}\\ \text{less than 10}& 6\\ \text{less than 20}& 15\\ \text{less than 30}& 30\\ \text{less than 40}& 39\\ \text{less than 50}& 53\\ \text{less than 60}& 70\end{array}$

Answer 1

The frequency table is as below:

$\begin{array}{cc}\text{Class Interval}& \text{No. of students}\\ 0-10& 6\\ 10-20& 9\\ 20-30& 15\\ 30-40& 9\\ 40-50& 14\\ 50-60& 17\\ & \end{array}$