Question

A survey was conducted on 20 families in a locality by a group of students .What will be the mode of the data?

$\begin{array}{cccccc}\text{Age of family member}& 0-20& 20-40& 40-60& 60-80& 80-100\\ \text{Number of students}& 7& 8& 2& 2& 1\end{array}$

• A. 21.8
• B. 22.85
• C. 25
• D. 27.88

Answer 1

The correct option is B

22.85

The modal class is 20 - 40 as it has the highest frequency of 8

The mode as seen from the graph is just less than 23. Exact value is 22.85 as the other options are far apart.