Q. 105.0( 3 Votes )

The mean and stan

Answer :

To Find: Find the correct mean and standard deviation.


Explanation: Here, n=100,


X =




So, Corrected


Corrected


Now, Standard variance = 3


Since, Variance =


Variance = 9


X =


9 =


9 =



Corrected


Corrected


Correct mean =


Corrected Variance =



409.22-400


Corrected variance =9.22


Now, Corrected Standard Deviation =



Correct Deviation is 3.04


Hence, The correct Mean is 20 and Correct SD is 3.04


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