Question

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

• A. $\begin{array}{cc}\text{Marks}& \text{Number of students}\\ \text{0-10}& 7\\ \text{10-20}& 22\\ \text{20-30}& 29\\ \text{30-40}& 37\\ \text{40-50}& 50\\ \text{50-60}& 60\end{array}$
• B. $\begin{array}{cc}\text{Marks}& \text{Number of students}\\ \text{0-10}& 17\\ \text{10-20}& 15\\ \text{20-30}& 7\\ \text{30-40}& 0\\ \text{40-50}& 13\\ \text{50-60}& 10\end{array}$
• C. $\begin{array}{cc}\text{Marks}& \text{Number of students}\\ \text{0-10}& 17\\ \text{10-20}& 5\\ \text{20-30}& 7\\ \text{30-40}& 8\\ \text{40-50}& 13\\ \text{50-60}& 10\end{array}$
• D. All of the above

Answer 1

The correct option is C

$\begin{array}{cc}\text{Marks}& \text{Number of students}\\ \text{0-10}& 17\\ \text{10-20}& 5\\ \text{20-30}& 7\\ \text{30-40}& 8\\ \text{40-50}& 13\\ \text{50-60}& 10\end{array}$

$\begin{array}{cc}\text{Marks}& \text{Number of students}\\ \text{0-10}& 17\\ \text{10-20}& 5\\ \text{20-30}& 7\\ \text{30-40}& 8\\ \text{40-50}& 13\\ \text{50-60}& 10\end{array}$