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-The mean of ten observations is 23. If two observations 4 and 7 are substituted by 3 and 8, then the new value of mean will be

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Question:

-The mean of ten observations is 23. If two observations 4 and 7 are substituted by 3 and 8, then the new value of mean will be

A.

20

B.

19

C.

23

D.

25

Answer» c. 23

Note: The above multiple-choice question is for all general and Competitive Exams in India.