Question

What is the class mark of the class interval 45-52

Answer 1

The class mark of the class interval 45-52 is 48.5

Answer 2

Answer:

The class mark of the class interval 45-52 is 48.5 .

Step-by-step explanation:

Class mark of an interval is defined as

Let us assume that the x -y be interval .

$Class\ marks = \frac{x+y}{2}$

As given in the question .

The interval is  45-52 .

Thus

$Class\ marks = \frac{45+52}{2}$

$Class\ marks = \frac{97}{2}$

Class marks = 48.5

Therefore the class mark of the class interval 45-52 is 48.5 .