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0 votes
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in Mathematics by (38.1k points)

Calculate the arithmetic mean from the following frequency distribution :

Class interval Frequency
0-10 6
10-20 10
20-30 9
30-40 4
40-50 11

(A) 26 

(B) 25 

(C) 24 

(D) More than one of the above 

(E) None of the above

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1 Answer

+1 vote
by (38.0k points)

 Correct Option is (A) 26 

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