The mean of 20 observations is 12.4 each observation is increased by 5,then new mean is
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Solution :
Given mean of 20 observations (x)=12.4
If each observation is increased by 5,
then new mean = x + 5
= 12.4 + 5
= 17.4
••••
Given mean of 20 observations (x)=12.4
If each observation is increased by 5,
then new mean = x + 5
= 12.4 + 5
= 17.4
••••
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