the class mark of a distribution are :

37,42,47,52,57

determine the class size and class limits......

Dear Student!

Here is the answer to your query.

In the given data class marks are uniformly spaced. So, the Class size is the difference between any two consecutive class marks.

∴ Class size = 42 – 37 = 5

we know that if a is the class marks of class interval and h is its class size then the lower and upper limits of the class intervals are and respectively.

∴ lower limit of first class interval =

and upper limit of first class interval =

So the first class interval is 34.5 – 39.5 similarly we obtain the other class limits as given

Cheers!