ec41lecture2b (1)

# Ec41lecture2b(1) - Statistics for Economists Lecture 2 Kata Bognar UCLA Descriptive Statistics Probability Basics Statistics for Economists Lecture

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Statistics for Economists Lecture 2 Kata Bognar UCLA Descriptive Statistics Probability Basics Statistics for Economists Lecture 2 Kata Bognar UCLA September 28, 2010

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Statistics for Economists Lecture 2 Kata Bognar UCLA Descriptive Statistics Probability Basics Last Lecture Population and sample Descriptive and inferential statistics
Statistics for Economists Lecture 2 Kata Bognar UCLA Descriptive Statistics Probability Basics Today’s Outline 1 Descriptive measures 2 Probability basics: random experiments, events and probabilities 3 Readings: TH, Chapter 1.1 Suggested readings: WS, Chapter 4.1 - 4.5 W, Chapter 4.1 - 4.3 4 Readings for next class: TH, Chapter 1.2

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Statistics for Economists Lecture 2 Kata Bognar UCLA Descriptive Statistics Probability Basics Frequency Distribution We start organizing data by deﬁning appropriate classes of observations. The frequency of a class is the number of observations that fall in a class. The frequency distribution corresponding to a data set is a listing of all classes and their frequencies. The relative frequency of a class is the ratio of the frequency of a class to the total number of observations. The relative-frequency distribution is a listing of all classes and their relative frequencies.
Statistics for Economists Lecture 2 Kata Bognar UCLA Descriptive Statistics Probability Basics Descriptive Measures Measures of center Measures of dispersion Measures of position

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Economists Lecture 2 Kata Bognar UCLA Descriptive Statistics Probability Basics Mean The mean of a data set is the sum of the observations divided by the number of the observations. If the data set consists of the values
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## This note was uploaded on 12/28/2010 for the course ECON 41 taught by Professor Guggenberger during the Fall '07 term at UCLA.

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Ec41lecture2b(1) - Statistics for Economists Lecture 2 Kata Bognar UCLA Descriptive Statistics Probability Basics Statistics for Economists Lecture

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