Sol Tutorial 2

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Unformatted text preview: ss between 66.6 and 93.2 pounds, 95% … between 53.3 and 106.5 pounds & nearly all … between 40 and 119.8 pounds. (0‐73)/48 = ‐ 1.52 The lowest possible value of 0 is 1.52 standard deviations below the mean. Thus the distribution is not bell‐shaped. It is right‐skewed. 2 ST1131 Introduction to Statistics a. b. a. Approximately: Min = 70; Q1 =110, Median= 160, Q3=180, max = 425 425 is an outlier (Luembourg) b. Italy: (138.7‐167.8)/72.8= ‐0.40. It is 0.40 standard deviations below the mean. c. US: (334‐167.8)/72.8= 2.28. It is 2.28 standard deviations above the mean. 3 Tutorial 2 Canada: (16.5‐8.3)/3.6= 2.28. Canada is 2.28 standard deviations above the mean in terms of air pollution. Their air pollution is comparatively high. Sweden: (5.0‐8.3)/3.6= ‐0.92. Sweden is 0.92 standard deviations below the mean in term of air pollution. Their air pollution is comparatively low....
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This document was uploaded on 03/25/2014.

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