hey mate need help
please explain why the class size has been taken 20 here in the solution even though it is not so.
class 10 mathematics
statistics
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aparnahvijay:
Same doubt so I m following
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H=60-20
=40
=40/2
=20
So 20 is ur answer....
C.I =100-60
=40
=40/2
=20
Hope it help u..
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