TrY540155 TrY540155
  • 03-11-2022
  • Mathematics
contestada

Find the z-score for a test score of 86% if themean was 75% and the standard deviationwas 6 points.

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DamaniG159794 DamaniG159794
  • 03-11-2022

ANSWER

[tex]1.833[/tex]

EXPLANATION

To find the z-score, we have to apply the formula:

[tex]Z=\frac{x-\mu}{\sigma}[/tex]

where x = Score

μ = Mean

σ = Standard deviation

Therefore, the z-score for the test score is:

[tex]\begin{gathered} Z=\frac{86-75}{6} \\ Z=\frac{11}{6} \\ Z=1.833 \end{gathered}[/tex]

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