Lecture 2 Chap 2 S10

# Lecture 2 Chap 2 S10 - Slide 1 Chapter 2 Frequency...

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Slide 1 Click to edit Master subtitle style Spring 2010 Chapter 2 Frequency Distributions

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Slide 2 What you need to know l How to construct frequency distributions in both table and graph forms l Why we use frequency distributions l How to compute percentiles & percentile ranks l How to interpolate scores and percentiles l How to eyeball shapes of distributions
Slide 3 Frequency Distributions l Goal of descriptive statistical techniques: to organize and simplify the data so you can get a general overview of the results. l Frequency distribution one method for simplifying and organizing data is organized table or graph showing exactly how many individuals are located in each category on the scale of measurement.

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Slide 4 Frequency Distributions should l A set of categories that make up the original scale of measurement (individual scores, categories, or groups of scores) l The frequencies (or number of individuals) in category l And sometimes proportions & percentages
Slide 5 Example: States visited by my class

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## This note was uploaded on 03/11/2010 for the course PSYCH 211 taught by Professor Natalieperson during the Spring '10 term at Rhodes.

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Lecture 2 Chap 2 S10 - Slide 1 Chapter 2 Frequency...

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