For normal distribution with a mean of 278 and a standard deviation of 25, what is the Z value for a random value to be 185?

Joni Kenny 2021-02-05 Answered
For normal distribution with a mean of 278 and a standard deviation of 25, what is the Z value for a random value to be 185?
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Pohanginah
Answered 2021-02-06 Author has 96 answers
Step 1
Solution:
It is given that,
Population mean, μ=278
Standard deviation, σ=25
Step 2
Now, the Z value for a random variable to be X=185 can be calculated as:
Z=Xμσ
=18527825=3.72
Hence, the Z value for a random variable to be 185 is -3.72.
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Jeffrey Jordon
Answered 2021-11-17 Author has 2313 answers

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