Question

Find the class mark of the class interval 45 - 50.

• A. Rs 100
• B. Rs 900
• C. Rs 750
• D. Rs 375

Answer 1

The correct option is D

Rs 375

Class mark of a class interval = $\frac{\text{lower class limit}+\text{Upper class limit}}{2}$

= $\frac{45+50}{2}$ = 47.5