In the class intervals 10-20, 20-30, 30-40, and 40-50, 30 is included in the interval ……………..
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Step-by-step explanation:
The number is always included in the lower limit of the class interval. Hence, 20 is included in 20−30
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Answer:
30-40
Step-by-step explanation:
in 20 -30, we will take the observations from 20 to 29. then same for 30-40, observations from 30 to 39 will be taken.
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