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CBSE Class 9 Answered

Write  the class size :- 10-19,20-29,30-39.
Asked by sarvanhi1108 | 16 Jan, 2019, 11:42: AM
answered-by-expert Expert Answer
10-19,20-29,30-39.

Since the classe are not continuous.

We will subtract 0.5 from the lower class limit and add 0.5 in the upper class limit of each class intervals.
 
9.5-19.5, 19.5-29.5, 29.5-39.5
 
Class size = 19.5 - 9.5 = 29.5 - 19.5 = 39.5 - 29.5 = 10
Answered by Yasmeen Khan | 16 Jan, 2019, 04:16: PM
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