Ch 2 Review -1

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Feb 20, 2024

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Ch 2: Review 1) Does the frequency distribution appear to have a normal distribution? Justify your answer. Yes, because the frequency starts low, then increases to a high frequency, and then decreases to a low frequency. 2) The data represents the heights of eruptions by a geyser. Use the heights to construct a stemplot. 3: 2 4: 0, 5 5: 0, 0, 0, 4, 9 6: 0, 2, 4, 6, 7 7: 0, 0, 5, 7 8: 0, 2 9: 0 3) In an analysis of a random sample of individuals from the 2000 U.S. Census, which of the following variables can be analyzed using a histogram? Answer “yes” or “no” and justify your answers. a) state of residence No, because state of residence is a categorical variable. A histogram displays the distribution of a quantitative vaiable. b) annual income Yes, because it is quantitative data and can be measured in a histogram. c) zip code
No, because zip code is categorical variable. d) family size Yes, because family size is quantitative variable.
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