Abeka: Algebra 2 Quiz 41

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If μ = 52 ft. and σ = 6 ft. for a normal distribution, calculate the z-score for a single measurement of 60 ft.

1.3

Find the area below the z-score -0.9 using Table A.

18.4%

Find the area between the z-scores 0.3 and 2.5 using Table A.

37.6%

If μ = 50 in. and σ = 5 in. for a normal distribution, use the empirical rule to estimate the percent of measurements between 40 in. and 60 in

95%

A probability of "zero" should be used for a z-score greater than 3.9. true/false

false - one

According to the empirical rule, 99.7% of the normal distribution falls within "two" standard deviations from the mean. true/false

false- three

The empirical rule can be written as "68-95-99.7." true/false

true

The shape of a normal distribution is a "bell curve." true/false

true

To find the area above a z-score, subtract the percent from "100%". true/false

true

If μ = 26 mL and σ = 5 mL for a normal distribution, calculate the z-score for a single measurement of 18 mL.

z=-1.6


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