MCQ
The class mark of the class interval $2.4-6.6$ is:
- ✓$4.5$
- B$4.2$
- C$6.6$
- D$2.4$
✓
Answer
Correct option: A.
$4.5$
Class mark $=\frac{\text{uppar limit+lower limit}}{2}$
$=\frac{2.4+6.6}{2}$
$=\frac{9}{2}$
$=\frac{2.4+6.6}{2}$
$=\frac{9}{2}$
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