A histogram of total US monthly retail sales, in billions of dollars, for the 129 months starting

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A histogram of total US monthly retail sales, in billions of dollars, for the 129 months starting with January 2009 is shown in Figure 2.30. Is the distribution approximately symmetric and bell-shaped? Use the histogram to give a rough estimate of the mean and standard deviation of monthly US retail sales totals.

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Statistics Unlocking The Power Of Data

ISBN: 9781119682219

3rd Edition

Authors: Robin H Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F Lock, Dennis F Lock

Question Posted: May 12, 2023 06:52 AM

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A histogram of total US monthly retail sales, in billions of dollars, for the 129 months starting

Question:

Frequency 20 15 10 LO 5 0 320 360 400 440 480 520 560 Sales Figure 2.30 Estimate the mean and the standard deviation

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The histogram is relatively symmetric and bellshaped The mean appears to ...View the full answer

Statistics Unlocking The Power Of Data

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