AP Stats: Chapter 2 Multiple Choice Practice Test

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Pete did better than about 73% of the test takers.

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3

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5.64, 1.32

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40%

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4.83 inches

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The area under the curve between A and G is 1.

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4" (inches)

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Distribution of z-scores for times to solve a crossword puzzle (original distribution skewed right, mean 30, SD 15):

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Skewed to the right with mean 0 and SD 1

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Proportion of light trucks with NOX levels > 2 grams/mile (μ = 1.45, σ = 0.40)?

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0.0846

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Who did better on the SAT exam, Gina in 1994 or Colleen in 2016, based on their standardized scores?

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Gina - her standardized score is higher than Colleen's.