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Statistics AP

ch. 5 statistics

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The sum of the probabilities of all events in a sample space adds up to 1. (Each probability is between 0-1) Mean, Variance, Standard Deviation, and expectation Mean: Variance: O=1.7 expected value: Binomial experiment must follow: two possible outcomes, fixed # o? trials , outcomes of each trial indep. Of each other, probability of success must remain the same P The probability of success q The probability of failure 1 ? p = q n The number of trials x The number of successes x: 0,1,2,3,4? x successes in n trials is out of 10 people 3 visited doctor: binomial distribution
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Statistics AP Chapter 1 Formulas

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Statistics AP
Formulas

Statistics AP Formulas, Definitions, Summaries Part I Organizing Data: Looking for Patterns and Departures from Patterns Chapter 1 Exploring Data Section 1.1 Displaying Distributions with Graphs INDIVIDUALS AND VARIABLES Individuals are the objects described by a set of data. Individuals may be people, but they may also be animals or things. A variable is any characteristic of an individual. A variable can take different values for different individuals. CATEGORICAL AND QUANTITATIVE VARIABLES A categorical variable records which of several groups or categories an individual belongs to. A quantitative variable takes numerical values for which it makes sense to do arithmetic operations like adding and averaging.
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