Question

Where do we use mid values of class interval

Answer 1

Answer:

Example 1= class interval of 40< x<45, the midpoint is 42.5.

example 2= class interval 1.1< X <1.5.

example 3= class interval of X <50.... x <60

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

mid value= lower limit plus upper limit\2