Statistics: The Art and Science of Learning from Data (4th Edition)

4th Edition

ISBN: 9780321997838

Author: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

Publisher: PEARSON

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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Chapter 2, Problem 143CP

Range and standard deviation approximation

Use the empirical rule to explain why the standard deviation of a bell-shaped distribution for a large data set is often roughly related to the range by evaluating Range ≈ 6s. (For small data sets, one may not get any extremely large or small observations, and the range may be smaller, for instance about 4 standard deviations.)

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Chapter 2, Problem 142CP

Chapter 2, Problem 144CP

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Chapter 2 Solutions

Statistics: The Art and Science of Learning from Data (4th Edition)

Ch. 2.1 - Categorical/quantitative difference a. Explain the...Ch. 2.1 - U.S. married-couple households According to a...Ch. 2.1 - Identify the variable type Identify each of the...Ch. 2.1 - Categorical or quantitative? Identify each of the...Ch. 2.1 - Discrete/continuous a. Explain the difference...Ch. 2.1 - Discrete or continuous? Identify each of the...Ch. 2.1 - Discrete or continuous 2 Repeat the previous...Ch. 2.1 - Prob. 8PB Ch. 2.1 - Fatal Shark Attacks Few of the shark attacks...Ch. 2.2 - Generating Electricity In 2012 in the United...

Ch. 2.2 - What do alligators eat? The bar chart is from a...Ch. 2.2 - Prob. 12PB Ch. 2.2 - Prob. 13PB Ch. 2.2 - Prob. 14PB Ch. 2.2 - Sugar dot plot For the breakfast cereal data given...Ch. 2.2 - Prob. 16PB Ch. 2.2 - Graphing exam scores A teacher shows her class the...Ch. 2.2 - Fertility rates The fertility rate for a nation is...Ch. 2.2 - Split Stems The figure below shows the...Ch. 2.2 - Histogram for sugar For the breakfast cereal data,...Ch. 2.2 - Prob. 21PB Ch. 2.2 - Prob. 22PB Ch. 2.2 - Prob. 23PB Ch. 2.2 - Prob. 24PB Ch. 2.2 - Prob. 25PB Ch. 2.2 - Prob. 26PB Ch. 2.2 - Prob. 27PB Ch. 2.2 - Warming in Newnan, Georgia? Access the Newnan, GA...Ch. 2.3 - Median versus mean For each of the following...Ch. 2.3 - Prob. 30PB Ch. 2.3 - Prob. 31PB Ch. 2.3 - Resistance to an outlier Consider the following...Ch. 2.3 - Income and health insurance According to the U.S....Ch. 2.3 - Prob. 34PB Ch. 2.3 - Prob. 35PB Ch. 2.3 - Prob. 36PB Ch. 2.3 - Public transportationcenter The owner of a company...Ch. 2.3 - Prob. 38PB Ch. 2.3 - Prob. 39PB Ch. 2.3 - European fertility The European fertility rates...Ch. 2.3 - Sex partners A recent General Social Survey asked...Ch. 2.3 - Prob. 43PB Ch. 2.3 - Prob. 44PB Ch. 2.3 - Prob. 45PB Ch. 2.4 - Sick leave A company decides to investigate the...Ch. 2.4 - Prob. 47PB Ch. 2.4 - Prob. 48PB Ch. 2.4 - Prob. 49PB Ch. 2.4 - Exam standard deviation For an exam given to a...Ch. 2.4 - Heights For the sample heights of Georgia college...Ch. 2.4 - Histograms and standard deviation The figure shows...Ch. 2.4 - Female strength The High School Female Athletes...Ch. 2.4 - Female body weight The College Athletes data file...Ch. 2.4 - Shape of cigarette taxes A recent summary for the...Ch. 2.4 - Empirical rule and skewed, highly discrete...Ch. 2.4 - How much TV? The 2012 General Social Survey asked,...Ch. 2.4 - How many friends? A recent General Social Survey...Ch. 2.4 - Judging skew using x and s If the largest...Ch. 2.4 - Youth unemployment in the EU The Youth...Ch. 2.4 - Create data with a given standard deviation Use...Ch. 2.5 - Vacation days National Geographic Traveler...Ch. 2.5 - Youth unemployment In recent years, many European...Ch. 2.5 - Female strength The High School Female Athletes...Ch. 2.5 - Female body weight The College Athletes data file...Ch. 2.5 - Ways to measure variability The standard...Ch. 2.5 - Variability of cigarette taxes Heres the...Ch. 2.5 - Prob. 68PB Ch. 2.5 - Infant mortality Africa The Human Development...Ch. 2.5 - Prob. 70PB Ch. 2.5 - Computer use During a recent semester at the...Ch. 2.5 - Central Park temperature distribution revisited...Ch. 2.5 - Box plot for exam The scores on an exam have mean...Ch. 2.5 - Public transportation Exercise 2.37 described a...Ch. 2.5 - Prob. 75PB Ch. 2.5 - Prob. 76PB Ch. 2.5 - Prob. 77PB Ch. 2.5 - Prob. 78PB Ch. 2.5 - Prob. 79PB Ch. 2.5 - Prob. 80PB Ch. 2.5 - Prob. 81PB Ch. 2.5 - Prob. 82PB Ch. 2.6 - Great pay (on the average) The six full-time...Ch. 2.6 - Prob. 84PB Ch. 2.6 - Prob. 85PB Ch. 2.6 - Terrorism and war in Iraq In 2004, a college...Ch. 2.6 - Prob. 87PB Ch. 2.6 - Prob. 88PB Ch. 2 - Categorical or quantitative? Identify each of the...Ch. 2 - Continuous or discrete? Which of the following...Ch. 2 - Prob. 92CP Ch. 2 - Cool in China A recent survey8 asked 1200...Ch. 2 - Prob. 94CP Ch. 2 - Prob. 95CP Ch. 2 - Prob. 96CP Ch. 2 - Prob. 97CP Ch. 2 - Prob. 98CP Ch. 2 - Prob. 99CP Ch. 2 - Prob. 100CP Ch. 2 - Prob. 101CP Ch. 2 - Prob. 103CP Ch. 2 - Household net worth A study reported that in 2007...Ch. 2 - Prob. 105CP Ch. 2 - Prob. 106CP Ch. 2 - Prob. 107CP Ch. 2 - Central Park monthly temperatures The MINITAB...Ch. 2 - Prob. 109CP Ch. 2 - Female heights According to a recent report from...Ch. 2 - Energy and water consumption In parts a and b,...Ch. 2 - Prob. 112CP Ch. 2 - More hurricane damage Refer to the previous...Ch. 2 - Prob. 114CP Ch. 2 - Prob. 115CP Ch. 2 - Prob. 116CP Ch. 2 - Prob. 117CP Ch. 2 - Temperatures in Central Park Access the Central...Ch. 2 - Teachers salaries According to Statistical...Ch. 2 - Prob. 120CP Ch. 2 - What box plot do you expect? For each of the...Ch. 2 - Prob. 122CP Ch. 2 - Prob. 123CP Ch. 2 - Prob. 124CP Ch. 2 - Prob. 125CP Ch. 2 - Who was Roger Maris? Roger Maris, who spent most...Ch. 2 - Baseballs great home run hitters The Baseballs HR...Ch. 2 - Prob. 128CP Ch. 2 - Controlling asthma A study of 13 children...Ch. 2 - Prob. 130CP Ch. 2 - Youth unemployment by gender The side-by-side box...Ch. 2 - You give examples Give an example of a variable...Ch. 2 - Political conservatism and liberalism Where do...Ch. 2 - Mode but not median and mean The previous exercise...Ch. 2 - Multiple choice: GRE scores In a study of graduate...Ch. 2 - Multiple choice: Fact about s Which statement...Ch. 2 - Prob. 137CP Ch. 2 - True or false: a. The mean, median, and mode can...Ch. 2 - Bad statistic A teacher summarizes grades on an...Ch. 2 - True or false: Soccer According to a story in the...Ch. 2 - Mean for grouped data Refer to the calculation of...Ch. 2 - Prob. 142CP Ch. 2 - Range and standard deviation approximation Use the...Ch. 2 - Range the least resistant Weve seen that measures...Ch. 2 - Using MAD to measure variability The standard...Ch. 2 - Prob. 146CP Ch. 2 - Create own data For the Mean Versus Median web...

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Solution Summary: The author explains that the standard deviation of a bell-shaped distribution is often roughly related to the range by using the empirical rule.

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Chapter 2 Solutions