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Year 12 Maths Advanced (2027) Random variables

z-scores & the Standard Normal Distribution

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Questions
Question 1
188813
The \(z\)-score (standardised score) of an observation \(x\) is given by:
A.
\(z=\dfrac{x-\mu}{\sigma}\)
B.
\(z=\dfrac{x-\sigma}{\mu}\)
C.
\(z=x-\mu\)
D.
\(z=\dfrac{\mu-x}{\sigma}\)
\(z=\dfrac{x-\mu}{\sigma}\)

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