Concept explainers
Warming Up? (H) Suppose we measure the temperature at a given location each day and take the mean to get the mean temperature for the year. Suppose we look at the mean annual temperature for a hundred years. If there were no global warming or cooling, what kind of a distribution would we expect? If there were significant global warming, how would the distribution differ?

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Chapter 9 Solutions
The Heart of Mathematics: An Invitation to Effective Thinking, WileyPLUS NextGen Card with Loose-leaf Set Single Semester: An Invitation to Effective Thinking (Key Curriculum Press)
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