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19 Cards in this Set

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  • Back
A body of techniques used to collect, organize, analyze, present and interpret data to make better decisions
Statistics
Methods used to describe data
Collecting, Organizing, Presenting of numerical data
Sample used to infer something about the population
Inferential Statistics
Population
All possible individuals, objects, or measurements under consideration
Sample
portion or part of the population, can be biased
Qualitative
nonnumeric, what proportion fall into each eategory
Quantitative
numeric, can be either discrete or continuous
Discrete
whole numbers
Continuous
whole numbers and fractions
Sources of Statistical Data
Published Data, Surveys, Questionnaires
can only be placed in one category
mutually Exclusive
appears in one of the categories, other or all
Exhaustive
NOIR
Nominal, Ordinal, Interval, and Ration
Nominal
Lowest, most limited can only be classified into categories and can't be arranged in a ranking
Ordinal
higher ranking, arranged in some order, can't differences b/w data values
Interval
all characteristics of ordinal, amounts of differences b/w data values can be determined, no "natural" zero point
Does zero ____ mean an absence of ___
Degrees, temperature Interval
Ratio
all characteristics of interval, ratio b/w two numbers is meaningful, meaningful zero point
Does zero ___ mean an absence of ___
Weight Pounds, Ratio