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5.1 The standard normal distribution  (Page 14/14)

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    z-score

    the linear transformation of the form z = x   –   μ σ ; if this transformation is applied to any normal distribution X ~ N ( μ , σ ) the result is the standard normal distribution Z ~ N (0,1). If this transformation is applied to any specific value x of the RV with mean μ and standard deviation σ , the result is called the z -score of x . The z -score allows us to compare data that are normally distributed but scaled differently.

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Source:  OpenStax, Statistics i - math1020 - red river college - version 2015 revision a - draft 2015-10-24. OpenStax CNX. Oct 24, 2015 Download for free at http://legacy.cnx.org/content/col11891/1.8
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