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Q.

What will be the true lower limit of the class 21-30?


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a

21

b

20

c

20.5

d

21.5 

answer is A.

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Detailed Solution

We have to find the true lower limit of the class 21-30.
We know that, in a class interval, the number that is the lower limit always belongs to the corresponding interval.
Calculating the lower limit.
The given class is 21-30.
So, the lower limit is 21.
Therefore, option 1 is correct.
 
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What will be the true lower limit of the class 21-30?