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what is the mean value and the standard deviation of the standardized random variable z used...

what is the mean value and the standard deviation of the standardized random variable z used in statistics ?

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Answer #1

For the standardized random variable z has a mean equal to 0 and standard deviation equal to 1.

If any normal variable X has a mean and standard deviation then standardized random variable z is:

This is formula for z.

The main answer is: mean = 0, standard deviation = 1 for standardized random variable.

Please comment if any doubt. Thank you.

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