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Statistics Homework Solutions 10

# Statistics Homework Solutions 10 - 15(a 6 9 12 13 14 15 16...

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10 CHAPTER 1 (d) Correct. The total area is equal to 1. 13. (a) Skewed to the left. The 85th percentile is much closer to the median (50th percentile) than the 15th percentile is. Therefore the histogram is likely to have a longer left-hand tail than right-hand tail. (b) Skewed to the right. The 15th percentile is much closer to the median (50th percentile) than the 85th percentile is. Therefore the histogram is likely to have a longer right-hand tail than left-hand tail.
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Unformatted text preview: 15. (a) 6 9 12 13 14 15 16 17 18 20 23 0.05 0.1 0.15 0.2 0.25 Density Log 2 population (b) 0.14 (c) Approximately symmetric (d) 2 4 6 8 0.05 0.1 0.15 0.2 0.25 Population (millions) The data on the raw scale are skewed so much to the right that it is impossible to see the features of the histogram....
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