Question

Make a frequency table from the following:
$\begin{array}{cc}\text{Marks obtained}& \text{Number of students}\\ \text{More than 60}& 0\\ \text{More than 50}& 16\\ \text{More than 40}& 40\\ \text{More than 30}& 75\\ \text{More than 20}& 87\\ \text{More than 10}& 92\\ \text{More than 0}& 100\end{array}$

Answer 1

Sol:

Marks (below)	Number of students (Cumulative Frequency)	Class Intervals	Frequency
More than 60	0	More than 60	0
More than 50	16	50-60	16-0=16
More than 40	40	40-50	40-16=24
More than 30	75	30-40	75-40=35
More than 20	87	20-30	87-75=12
More than 10	92	10-20	92-87=5
More than 0	100	0-10	100-92=8
		Total	100