Exam 5: Introduction to Probability and Sample Statistics

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A bowl contains 15 balls: 5 red, 3 orange, 4 yellow, and 3 blue. The probability that a ball selected at random is yellow is equal to which one of the following?

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B

A basket contains 58 rings: 10 diamond, 22 amethyst, and 26 aquamarine. The probability that a ring selected at random is amethyst is equal to which one of the following?

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B

Which of the following is needed to be able to draw inferences about a parameter based on a sample estimate?

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A

To draw inferences from a sample, to what is the sample statistic compared?

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