STAT 263 Study Guide - Final Guide: Celsius, Categorical Variable, Sample Space
30 Nov 2015
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Document Summary
Lurking variable: variable that may skew the results but which is not included among the variables studied. Descriptive statistics: use of numbers and graphical methods to summarize the info revealed in the data. Inferential statistics: involves making estimates, decisions, predictions, and other generalizations about an entire population based on a study of a sample of that population. Mutually exclusive data: the occurrence of a makes b or c impossible ie. in a deck of cards a red and a spade are mutually exclusive. Nominal data: data is categorized by numbers, appears numerical but is categorical. Ordinal data: mutually exclusive date with fixed order (ie. letter grades) Interval data: mutually exclusive, fixed order, equal spacing between numbers (ie. celsius scale) Ratio data: mutually exclusive, fixed order, equal spacing between numbers, absolute 0 point (ie. weight, height) Dichotomous data: only two choices (ie. boy or girl?) A statistical technique for displaying a set of data.
