Question

give solution and win 50 points​

Answer 1

Step-by-step explanation:

Given,

Mid-point of class = m

We know that,

Mid-point = ½(upper class limit + lower class limit)

m = ½(upper class limit + lower class limit)

lower class limit = l (given)

upper class limit + l = 2m

upper class limit = 2m – l .

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Hope it helps

Answer 2

Step-by-step explanation:

mid - point of class=m

we know that

mid point =1/2

upper class limit + lower class limit

m=1/2

upper class limit =+1=2m

upper ---> 2m - 1

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