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Q.

What is class interval?

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a

range

b

data

c

limit

d

frequency

answer is B.

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Detailed Solution

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Concept: Class interval calculate the range, or the difference between the data's highest and lowest observations.

It estimates the size of the interval, divide the range by the number of classes (h).

To calculate the upper-class limit, take the lower-class limit of the lowest class and multiply it by the class-interval.

Hence, the class interval is a range

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