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Chapter 6: The Normal Distribution

Expert-verified
Introductory Statistics
Pages: 365 - 398
Introductory Statistics

Introductory Statistics

Book edition OER 2018
Author(s) Barbara Illowsky, Susan Dean
Pages 902 pages
ISBN 9781938168208

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Illustration

105 Questions for Chapter 6: The Normal Distribution

  1. X~N(–4,1)

    Found on Page 385

  2. Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed with a mean of 250 feet and a standard deviation of 50 feet.

    Found on Page 391

  3. A bottle of water contains 12.05fluid ounces with a standard deviation of 0.01ounces. Define the random variable Xin words. X=_______

    Found on Page 385

  4. Is X~N(0,1) a standardized normal distribution? Why or why not?

    Found on Page 385

  5. What is the z-score of x=12, if it is two standard deviations to the right of the mean?

    Found on Page 385

  6. What is the z-score of x= 9, if it is 1.5 standard deviations to the left of the mean?

    Found on Page 385

  7. What is the z-score of x= –2, if it is 2.78 standard deviations to the right of the mean?

    Found on Page 385

  8. What is the z-score of x= 7, if it is 0.133 standard deviations to the left of the mean?

    Found on Page 385

  9. 15. Suppose X ~ N(2, 6). What value of x has a z-score of three?

    Found on Page 385

  10. Suppose X ~ N(8, 1). What value of x has a z-score of –2.25?

    Found on Page 385

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