As of this writing, the most recent Oscar-winning Best Actress was Helen Mirren, who was 61 at

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As of this writing, the most recent Oscar-winning Best Actress was Helen Mirren, who was 61 at the time of the award. The Oscar-winning Best Actresses have a mean age of 35.8 years and a standard deviation of 11.3 years.

a. What is the difference between Helen Mirren’s age and the mean age?

b. How many standard deviations is that (the difference found in part (a))?

c. Convert Helen Mirren’s age to a z score.

d. If we consider “usual” ages to be those that convert to z scores between - 2 and 2, is Helen Mirren’s age usual or unusual?

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Elementary Statistics

ISBN: 9780321500243

11th Edition

Authors: Mario F. Triola

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Question Posted: Feb 21, 2020 12:34 PM

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As of this writing, the most recent Oscar-winning Best Actress was Helen Mirren, who was 61 at

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