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Q.

The class width of the histogram given above is:

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a

2

b

3

c

5

d

10

answer is C.

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Detailed Solution

It is provided with a histogram representing the heights.
Question Image

Question Image

The objective is to find the class-width of the given data.
From the graph, consider a class interval, say 125 - 130.
So the upper class limit is 130 and the lower class limit is 125.
Class width is given by,
Class width = Upper class limit - Lower class limit.
Substitute the values in the formula,

= 130 − 125 = 5

The class-width of the data is 5.
Hence, option 3 is correct.

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