Standard Deviation Answers

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Which equation can you use to calculate the missing credit score?

Option

The missing credit score was .

752

808

810

z11.7 ≈

-1.3

0.4

1.3

3.3

Is 11.7 within a z-score of 3?

Yes because z < 3.

Yes because z = 3.

No because z > 3.

Which statement is true of z?

z is between 0 and 1 standard deviations of the mean.

z is between 1 and 2 standard deviations of the mean.

z is between 2 and 3 standard deviations of the mean.

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