'Way tables' diaporamas de présentation

ENGR 224/STAT 224 Probability and Statistics Lecture 5

ENGR 224/STAT 224 Probability and Statistics Lecture 5. Probability Theory. Definition: An experiment is any process that allows researchers to obtain observations. Definition: An event is any collection of results or outcomes of an experiment.

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introducing ? 2 Inference for Distribution of Categorical Variables

A new test statistic. introducing ? 2 Inference for Distribution of Categorical Variables. Three Tests. 1. 3. 2. Goodness Of Fit. Association/ Independence. Homogeneity Of Populations. Conditions?. 1. Goodness of Fit Are the hypothesized proportions true?.

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Warm Up

Warm Up. P245-246 Do # 4.54,4.55 15 minutes Have out homework for check. 6.2 Probability Models. Review of Concepts. Probability Rules. 1. The probability P(A) of any event A satisfies . 2. If S is the sample space in a probability model, then P(S) = 1.

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AP Statistics

AP Statistics. 13.2 Inference for Two Way Tables. Learning Objective:. Analyze Two Way Tables Using Chi-Squared Test for Homogeneity and Independence. Three Types of Chi-Squared Distributions. Expected Counts= Degrees of freedom (r-1)(c-1) Chi-Squared Test Statistic.

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Two Way Tables - Papers

Nadine asked 50 people which of the newspapers the Times, the Guardian and the Telegraph they like best. Here is information about her results. 19 out of the 25 males said they like the Telegraph best. 5 females said they like the Guardian best.

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Chapter 1: Exploring Data

Chapter 1: Exploring Data. Section 1.1 Analyzing Categorical Data. The Practice of Statistics, 4 th edition - For AP* STARNES, YATES, MOORE. Categorical Variables place individuals into one of several groups or categories.

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PROBABILITY

PROBABILITY. Probability Concepts. - Probability is used to represent the chance of an event occurring. - Probabilities can be represented by fractions, decimals and percentages but NOT BY RATIOS. - Probabilities lie between 0 and 1 inclusive. - Impossible events have a probability of 0.

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Unit 4: More About Relationships between Two Variables

Unit 4: More About Relationships between Two Variables. Tatiana Dobretsova Eujin Jang Phillip Kim Greg Reyelts. The big idea. Using logarithms to transform data that follow a curved pattern to achieve a linear relationship.

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GCSE Maths Starter 2

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Review of Probability

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UNR, STAT 453/653, Fall 2009

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4.3 Relations in categorical Data

4.3 Relations in categorical Data. Categorical data. Some variables are inherently categorical, for example: Sex Race Occupation Other categorical variables are created by grouping values of a quantitative variable into classes.

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5.2 Day Two

5.2 Day Two. Two Way Tables Venn Diagrams Probability. Learning Targets. I can use a Venn diagram to model a chance process involving two events. I can use the general addition rule to calculate P(AUB). Two-Way Tables.

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AP STATS: Cumulative Review

AP STATS: Cumulative Review. Work in groups on the review multiple choice problems handed out from our textbook. I will go over a few important details to think about for the test, how the test will be scored, and some review topics. Answers. 1.) D 2.) A 3.) E 4.) A 5.) C 6.) A 7.) E

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AP Statistics

AP Statistics . Section 4.2 Relationships between Categorical Variables. Objective: To be able to organize data in a two-way table and calculate marginal and conditional distributions. A two-way table is a method used to organize data from 2 categorical variables.

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WOMEN AND CHILDREN FIRST?

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