Correcting mean

The average of 10 numbers is calculated as 25. It is discovered later on that while calculating the average, one number, namely 36 was wrongly read as 56. Find the correct average.

Correct answer:

m =  23

Step-by-step explanation:

n=10 s1=n 25=10 25=250 s2=s156+36=25056+36=230  m=ns2=10230=23



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