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Stats Vocab
Ch. 1 and 2 Vocab
19
Other
12th Grade
08/28/2007

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Term
nominal
Definition
unranked categories (ie math, science, etc.)
Term
ordinal
Definition
unnumerical rank (ie good to bad)
Term
interval
Definition
defined difference with no zero
Term
ratio
Definition
defined difference with a zero
Term
statistics
Definition
science of conducting studies to collect, organize, sum, analyze, and conclude from data
Term
data
Definition
values
Term
collection of datum
Definition
single value
Term
descriptive stats
Definition
collect, organize, sum, present data
Term
population
Definition
what is studied
Term
sample
Definition
subset of population
Term
hypothesis testing
Definition
process to evaluate claims about a population
Term
inferential stats
Definition
generalizing from samples, performing hypothesis test, determining relationships, and making predictions
Term
variable
Definition
can assume dif values
Term
qualitative variables
Definition
characteristic that can be placed into distinct categories
Term
quantitative variables
Definition
characteristics that are numerical or rankable
Term
discrete variable
Definition
can be counted
Term
continuous variable
Definition
occur btwn. limits on a continuous basis
Term
confounding variable
Definition
tied to the treatment group to the point where it can't be separated from the indep. variable
Term
Hawthorne Effect
Definition
positive result brought about because the treatment group or control are aware they're involved in experiment
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