Statistics For Dummies - Tapa blanda

Stymied by statistics? Fear not! In easy-to-understand terms, this friendly guide shows you how to collect, graph, and critique data; decipher distributions; calculate confidence intervals and hypothesis tests; analyze data with correlation, regression, and two-way tables; and much more.

• The world of statistics — get a handle on the quantity and quality of statistics you encounter in everyday life

• Get the big picture — explore data using graphs and charts and describe data using means, medians, standard scores, percentiles, and more

• Results may vary — understand common statistical distributions and find out how to work with random variables, standard error, the Central Limit Theorem, and more

• Guesstimate with confidence — use standard error, confidence intervals, and hypothesis tests to make conclusions about a population

• Dig into statistical studies and their analyses — get the scoop on polls, experiments, correlation, linear regression, two-way tables, and independence

Open the book and find:

• Plain-English explanations of statistical jargon

• Information on organizing, graphing, and critiquing data

• The 411 on random variables; the binomial, normal, t-, and sampling distributions; and the Central Limit Theorem

• Pointers for conducting, interpreting, and critiquing polls and experiments

• Data analysis tools for regression, confidence intervals, hypothesis tests, and two-way tables

• Plenty of examples and figures to illustrate important concepts and methods

Learn to:

• Grasp statistical ideas, techniques, formulas, and calculations

• Interpret and critique graphs and charts, determine probability, and work with confidence intervals

• Critique and analyze data from polls and experiments