Q. 8 D3.7( 6 Votes )

In a frequency distribution table, the midpoints of the classes are 15, 20, 25 30, ….. respectively. The class having midpoint as 20 is
A. 12.5 – 17.5

B. 17.5 – 22.5

C. 18.5 – 21.5

D. 19.5 – 20.5

Answer :

Mid value of class interval


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