Math, asked by nandinikamini0, 5 months ago

the mean of the 10 observations is 17.5 by on error one observation is registered as 21 instead of 12 find the correct mean

Answers

Answered by tummakeerthana19

0

Answer:

mean=sum of observations/no of observations

mean of 10 observations =17.5

sum of 10 observations =175

correct mean=175-21+12/10

=166/10=16.6

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