A data set has a mean of 80 and a standard deviation of 10. Which of the

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A data set has a mean of 80 and a standard deviation of 10. Which of the following might possibly be true? WHY?

a) more than 90% of the data values are between 50 and 110.

b) No less than 30% of the data values are less than 60 or greater than 100.

c) at least 15% of the data values are less than 50 or greater than 110.

d) No more than 50% of the data values are between 60 and 100.

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Essentials of Business Statistics Communicating With Numbers

ISBN: 978-0078020544

1st edition

Authors: Sanjiv Jaggia, Alison Kelly

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Posted Date: Jun 21, 2021 06:58 PM

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