Math, asked by Noorulla847, 1 year ago

The mean of nine observations was found to be 35.later on,it was discovered that an observation 81 was misread as18 .find the correct mean of the observation

Answers

Answered by Anonymous

9

the total =35*9=315
the total exclusive of 18 =315-18
=297
the new total inclusive of 81=297+81
=378
the new mean=378/9
=42

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