the mean of score marked by 100 students was found to be 40 later on it was discovered that a score by 53 was misread as 83.find correct mean
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27 is the correct mean..... man......
karan018:
give solution
but ur ans was wrong
ohh !! ok
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Total/100 = 40
Total = 4000
New total = total - 30 =4000-30 =3970
New mean = 3970/100= 39.7%
Total = 4000
New total = total - 30 =4000-30 =3970
New mean = 3970/100= 39.7%
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