The class marks of a frequency distribution are given as follows 15,20,25,.... The class corresponding to the class marks 20 is
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Here's , ur answer :-
Given, CM= 15,20,25,30,35.....
Since the CM are of equal width, then class size= 20-15=5
Using the formula:
a+(h/2) and a-(h/2), Where a= CM and h=class size
Substituting,
20+(5/2)=20+2.5=22.5
20-(5/2)=20-2.5=17.5
Therefore, class (CM=20) is 22.5-17.5
HOPE , IT HELPS .. ✌️
_______________________
_______________________
Here's , ur answer :-
Given, CM= 15,20,25,30,35.....
Since the CM are of equal width, then class size= 20-15=5
Using the formula:
a+(h/2) and a-(h/2), Where a= CM and h=class size
Substituting,
20+(5/2)=20+2.5=22.5
20-(5/2)=20-2.5=17.5
Therefore, class (CM=20) is 22.5-17.5
HOPE , IT HELPS .. ✌️
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