Arithmetic mean of 10 observations is 36 is one of the observation 27 is deleted then find the mean of the remaining observations
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Arithmetic mean of 10 observations is 36 is one of the observation 27 is deleted then find the mean of the remaining observations
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mean = sum of obs./no. of observation
36=x/10
360=x
if 27 is deleted
so mean=x-27/9
mean=360-27/9
mean= 333/9
mean = 37
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