STAT1008 Cheat Sheet PDF

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Summary

1. BASIC of no of manufacture categories, income gender, manufacture distance, time, age, best cruising 0 18 83 2 83 is a to right, modality skewness (positive long tail to class, Plot: If observations are labelled X 1 , X 2 ,..., X sample average is called n X1 what of data is the location of the p...

Description

1. BASIC STATS Types of variables: Count: no of bedrooms/children, manufacture year Ordinal: categories, income brackets Nominal: gender, yes/no, manufacture model Continuous: distance, time, age, best cruising speed Graphs Scatterplots: shows if there is a linear relationship (positive increasing left to right, cov>0), doesn't measure strength Histogram: modality skewness (positive long tail to right), modal class, symmetry Box Plot: Skewness (short/long whisker, short bottom=positive), symmetric Empirical CDFs

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Suppose we require P(X...