Home
Flashcards
Preview
Intro Ch 1
The flashcards below were created by user
nemothebest
on
FreezingBlue Flashcards
.
Quiz
iOS
Android
More
Individuals
are the objects described by a set of data. Individuals may be people, but they may also be animals or things
Variable
is any characteristic of an individual. It can take different values for difference individuals
Categoral Variable
places an individual into one of several groups or categories
Quantitative variable
takes numerical values for which arithmetic operations such as adding and averaging make sense
distribution
of a variable tells us what values the variable takes and how often it takes these values
G.S.O.C.S
gap, shape, outliers, centre, spread
Histogram
displays distribution of one quantitative variable
bar widths must be equal
do not pick too many or too few intervals
4/5
Percentile
the pth percentile of a distribution is the value such that 'p' percent of the observations fall "at or below" it.
Ex.) if you receive a standardized test in the 70th percentile that 70%of the people were the same or below you
Ogive
a relative cumulative frequency graph
Author
nemothebest
ID
282115
Card Set
Intro Ch 1
Description
Stats quiz on Friday sept 4 defs
Updated
2014-09-05T00:20:42Z
Show Answers
Home
Flashcards
Preview