in a continous frequency
distribution table if the mid point of a class is 42 and class size is 10 then let us write the upper and lower limit of the class.
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Answer:
Let upper limit and lower limit be x and y
⇒
2
x+y
=42 [ Given ]
∴ x+y=84 ------ ( 1 )
Now, according to the question,
⇒ x−y=10 ------ ( 2 )
Adding equation ( 1 ) and ( 2 ) we get,
2x=94
∴ x=47
And 47−y=10
∴ y=37
∴ Required class interval =37−47
Step-by-step explanation:
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