Question

class mark of class interval 75-100 is.....​

Answer 1

Answer:

Class mark = 100+75÷2 = 175÷2 = 87.5

Hope it helps you...

Answer 2

Answer: 87.5

Explanation:

We know that in statistics , the class mark is given by the mid point of a class limit. It is also defined as the average of upper limit and lower limit.

$\text{Class Mark}= \dfrac{\text{Upper limit+Lower limit}}{2}\\\\\Rightarrow\ \text{Class Mark}=\dfrac{100+75}{2}=87.5$

Therefore, the class mark of interval 75-100 is 87.5.