A) 9
B) 11
C) 10
D) 12
Correct Answer: B
Solution :
Given, Class interval \[63-72\](72 included) Class size (width) = 9 Maximum observation =112 Minimum observation = 14 \[\therefore \]No. of classes \[=\frac{\text{Max}-\text{Min}}{\text{width}}\] \[=\frac{112-14}{9}=\frac{98}{9}=10.8\cong 11\] Hence, the no. of classes in the distribution is 11.You need to login to perform this action.
You will be redirected in
3 sec