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Question

Let x,y,z be three observations. The mean of these observations is:


A

x×y×z3

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B

x+y+z3

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C

x-y-z3

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D

x×y+z3

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Solution

The correct option is B

x+y+z3


Explanation for the correct option:

Compute the mean of the given observations:

According to the formula of mean:

Mean=SumofalltheobservationsNumberofobservations.

So, if x,y,z are the three observations.

Then the mean is given by: x+y+z3.

Hence, option (B) is the correct answer.


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