Question

In a frequency distribution with class intervals 10 –20, 20 –30, …. , observation 20 lies in which of the following class .

(a) 10-20 (b)20-30 (c) 30-40 (d)40-50​

Answer 1

Answer:

(b) 20-30

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

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