the mean of 10 observations is 28. if 2 Is added to each observation and then each result is divided by 3 find the mean of new observations so obtained
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The simplest method to such questions Is
The mean given in the question is 28, so according to the condition, add 2 to the mean so that it becomes 28+2=30 and then divide mean itself by 3 i.e. 30/3 = 10.
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