What is the width of the class interval 50-90?

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Solution

The correct option is B
40

The class size/width of a class interval is the difference between its upper-class limit and lower-class limit.

Class size/width of the class = Upper class limit - Lower class limit

= 90 - 50

= 40

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Similar questions

Find the class width of the class interval 20-24.

Class-Interval	Below 20	20−50	50−90	90−140	More than 140
Frequency	7	12	16	2	4

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