Question

How to calculate mid value of each class if the continuous frequency is given?

Answer 1

It is find out with a formula i.e
( Lower limit+Upper Limit)/2

Answer 2

To find mid value of continuous frequency:

The Mid value continuous frequency can be found by taking the average of lower and upper limit.

Mid value = $\bold{\frac{\text { Lower limit + Upper Limit}}{2}}$

Example 1: Class interval of 40≤x<45, $\frac{40+45}{2}=42$. The midpoint is 42.5.

Example 2: Class interval of 1.1≤x≤1.5, $\frac{1.1+1.5}{2}=1.25$. The midpoint is 1.25.

Example 3: Class interval of x<50… x<60. $\frac{50+60}{2}=55$. The midpoint between the two is 55.

Example 4: Class interval of 20 < x < 30.$\frac{20+30}{2}=25$ the midpoint is 25.