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21 Cards in this Set

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Descritive Statics
Orginize and discribe data
Inferential Statics
sample in a population 15 thousand women at MCC just study 50 women
population
whole group
Sample
part of a whole
variable
any characteristic that can take on different values.
independent variable
the variable that you are testing its affect on other variables - change the light in the room to see if it affects test scores
Dependent variable
results depented on the independent variable
Statistic
number that is giving some information, summerizing characteristic about the sample
Parameter
the true number of the whole poputation- never 100% sure that the whole population is the same when using part of a whole
Frequency
number of times a given score was obtained
Histogram
bar graph
Discrete
whole #
symmetry
same both sides are =
skewed
graph goes up and down the strate positive or negative
modaltiy
how many picks it has
normal distibution
bell curve standard form of a graph
Raw Score
score that has not been changed or transfromed - actual score
Percentile Rank
percent of people that score at or lower than your score placement
Percentile
just the percent at that point not a rank
Quartile
a transformed score that divides the number of cases into four equal parts.
Decile
a transformed score that divides the number of cases into ten equal parts.