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Exploring Data | |
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Picturing Distributions with Graphs | |
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Individuals and variables | |
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Categorical variables: pie charts and bar graphs | |
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Quantitative variables: histograms | |
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Interpreting histograms | |
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Quantitative variables: stemplots | |
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Time plots | |
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Describing Distributions with Numbers | |
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Measuring center: the mean | |
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Measuring center: the median | |
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Comparing the mean and the median | |
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Measuring spread: the quartiles | |
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The five-number summary and boxplots | |
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Measuring spread: the standard deviation | |
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Choosing measures of center and spread | |
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Using technology | |
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Organizing a statistical problem | |
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The Normal Distributions | |
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Density curves | |
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Describing density curves | |
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Normal distributions | |
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The 68-95-99.7 rule | |
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The standard Normal distribution | |
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Finding Normal proportions | |
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Using the standard Normal table | |
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Finding a value given a proportion | |
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Scatterplots and Correlation | |
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Explanatory and response variables | |
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Displaying relationships: scatterplots | |
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Interpreting scatterplots | |
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Measuring linear association: correlation | |
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Facts about correlation | |
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Regression | |
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Regression lines | |
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The least-squares regression line | |
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Using technology | |
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Facts about least-squares regression | |
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Residuals | |
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Influential observations | |
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Cautions about correlation and regression | |
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Association does not imply causation | |
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Exploring Data: Part I Review | |
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Part I Summary | |
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Review Exercises | |
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Supplementary Exercises | |
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From Exploration to Inference | |
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Producing Data: Sampling | |
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Population versus sample | |
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How to sample badly | |
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Simple random samples | |
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Inference about the population | |
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Cautions about sample surveys | |
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Producing Data: Experiments | |
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Observation versus experiment | |
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Subjects, factors, treatments | |
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How to experiment badly | |
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Randomized comparative experiments | |
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The logic of randomized comparative experiments | |
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Cautions about experimentation | |
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Matched pairs designs | |
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Introducing Probability | |
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The idea of probability | |
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Probability models | |
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Probability rules | |
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Discrete probability models | |
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Continuous probability models | |
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Random variables | |
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IV Starred material is not required for later parts of the text | |
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Sampling Distributions | |
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Parameters and statistics | |
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Statistical estimation and the law of large numbers | |
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Sampling distributions | |
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The mean and standard deviation of ���”x | |