Question

In a frequency distribution, the mid value of a class is $10$ and the width of the class is $6$. The lower limit of the class is:

• A. $6$
• B. $7$
• C. $8$
• D. $12$

Answer 1

The correct option is B

$7$

Explanation for correct option

The mid value of the class $=10$

Width of the interval $=6$

We know that

$\mathrm{Lower}\mathrm{limit}=\mathrm{Mid}\mathrm{value}-\frac{\mathrm{Width}}{2}$

$$\begin{gathered} =10-\frac{6}{2} \\ =10-3 \\ =7 \end{gathered}$$

Hence, the correct option is $\mathrm{Option}\left(\mathrm{B}\right)$