University of California, Los Angeles STATS 10 Introduction to Statistical Reasoning Homework 3

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University of California, Los Angeles STATS 10 Introduction to Statistical Reasoning Homework 3 3.1: Earnings: Answer: c. the center of the distribution of salaries for U.S. men is greater than t... he center for women 3.2: Houses: Answer: b. The typical price for homes with pools is smaller than the typical price for homes without pools 3.3: Age of CEOs Answer: Based on the distribution, the approximate mean age of the CEOs in this data set is 58 years old. 56+60/2 = 116/2 = 58 3.4: Televisions: - 90 community college students homes - Number of TVs Answer: The histogram is shaped symmetrically. The typical number/approximate mean would be 3 televisions in the homes 3.5: Billionaires: - 5 states in the Midwest with most billionaires a. The mean number of billionaires in these five states is 10.2 20+10+10+6+5/5 = 51/5 = 10.2 b. Dot Plot of Billionaires (drawn in the attachment) c. Standard deviation of the # of billionaires per state (nearest tenth): 6 *work is shown on the attached pictures d. Number from farthest from the mean: 20 3.6: Billionaires: - 5 states in the Northeast with most billionaires a. The mean number of billionaires in these five states is 19.4 b. Dotplot of Billionaires Work is drawn on the attachments c. Standard deviation of the # of billionaires per state Answer: 26.71 or 27 rounded up d. Number farthest from the mean: 67 [Show More]

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