Question

Present the following as an ordinary grouped frequency table:
$\begin{array}{ccccccc}\text{Marks (below)}& 10& 20& 30& 40& 50& 60\\ \text{(Number of students)}& 5& 12& 32& 40& 45& 48\end{array}$

Answer 1

Sol:

Marks	Number of students (Cumulative Frequency)	Class Intervals	Frequency
10	5	0-10	5
20	12	10-20	12-5=7
30	32	20-30	32-12=20
40	40	30-40	40-32=8
50	45	40-50	45-40=5
60	48	50-60	48-45=3
		Total	48