Question

Given below is a cumulative frequency table:
$\begin{array}{cc}\text{Marks}& \text{Number of students}\\ \text{Below}10& 17\\ \text{Below}20& 22\\ \text{Below}30& 29\\ \text{Below}40& 37\\ \text{Below}50& 50\\ \text{Below}60& 60\end{array}$
Extaract a frequency table from the above.

Answer 1

Sol:

Marks (below)	Number of students (Cumulative Frequency)	Class Intervals	Frequency
10	17	0-10	17
20	22	10-20	22-17=5
30	29	20-30	29-22=7
40	37	30-40	37-29=8
50	50	40-50	50-37=13
60	60	50-60	60-50=10
		Total	60