5.22.08 - Introduction

# 5.22.08 - Introduction - What is Statistics HUDM 4120...

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What is Statistics? HUDM 4120

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Statistics are: summary numbers (or indices) that result from analyzing data. 70 % chance of rain
Batting Average .393 IQ scores Average-100 Test Taker C-149 Test Taker K- 59

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Statistics are also: the procedures and tools to organize and interpret observations or events which can be expressed numerically.
Graphing 0 10 20 30 40 50 60 70 80 90 100 8 10 12 14 16 18 20 22 24 26 Score

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Calculating Measures of Central Tendency - (Mean, Mode, Median) Calculating Measures of Dispersion - (Standard Deviation, Variance, Standard Scores)
T-Tests ANOVA (One-Way and Two-Way) Correlations Regression Chi-Square

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How can we use statistics?
Interpreting journal articles; understanding conclusions. Researching areas of interest, and representing information numerically.

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Which car has the best gas mileage? HW CY - Honda Accord EX (4-cyl.) 38 16 - Nissan Altima 3.5 SE 30 14 - Chevrolet Impala LS 31 12 - Toyota MR2 36 25 Miles per Gallon
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5.22.08 - Introduction - What is Statistics HUDM 4120...

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