pcastro326 pcastro326
  • 09-05-2019
  • Mathematics
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What is the value this is -3 standard deviations from the mean?

What is the value this is 3 standard deviations from the mean class=

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TaeKwonDoIsDead
TaeKwonDoIsDead TaeKwonDoIsDead
  • 09-05-2019

Answer:

x = 44.9

Step-by-step explanation:

This equation shown falls in the formula for z score:

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

Where [tex]\mu[/tex] = 62

[tex]\sigma[/tex] = 5.7

ans z = -3

So, which value corresponds to a z-score of -3???

we cross multiply and do algebra to solve for x:

[tex]-3=\frac{x-62}{5.7}\\-3*5.7=x-62\\-17.1=x-62\\-17.1+62=x\\44.9=x[/tex]

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