Question

For the table given below, which class has different class inteval?

$$\begin{array}{cc}Height& Numberofstudents\\ 150-154& 4\\ 155-159& 3\\ 160-164& 2\\ 165-168& 1\\ 169-173& 2\end{array}$$

• A. 150-154
• B. 160-164
• C. 165-168
• D. 169-173

Answer 1

The correct option is C

165-168

Class interval = Upper limit of the class - lower limit of the class

The classes given in the above table are 150-154, 155-159, 160-164, 165-168, 169-173. Among these, all the classes have class interval 4 except 165-168.

The class interval for 165-168 is 3.