NextQ14

Mean of a normal variable $X$ is 50. If the value of $Z$-score is -2.5 for $x = 25$ then which of the following is a variance of the distribution?

Standard Normal VariableStudy Simplify Special1MCQ
Question 13

In usual notation of normal distribution, x=25x = 25, μ=20\mu = 20 and σ=5\sigma = 5 then which of the following is the value of standard normal variable?

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