# Shared Flashcard Set

## Details

Behavioral Statistics Test 1
Formulas and vocabulary pertaining to Behavioral Statistics
13
Mathematics
09/15/2013

Term
 Descriptive Statistics
Definition
 Used to summarize and organize data
Term
 Inferential Statistics
Definition
 used to make predictions about a population by studying a sample from said population
Term
 biased
Definition
 does not represent the population accurately
Term
 summation of scores
Definition
 ∑x
Term
 mean definition and formula
Definition
 adding all of the scores together and then dividing by the number of scores   M = ∑x/n
Term
 formula to find number of scores in a frequency distribution
Definition
 ∑ƒ = n
Term
 weighted mean
Definition
 ∑x1 + ∑x2 / n1 + n2 = M
Term
 Definition SS Population
Definition
 SS = ∑(x-μ)2
Term
 Definition SS Sample
Definition
 SS = ∑(x-M)2
Term
 Computation SS Population
Definition
 SS = ∑x2 - (∑x)2 / N
Term
 Computational SS Sample
Definition
 SS = ∑x2 - (∑x)2 / n
Term
 Standard Deviation Population
Definition
 σ = √SS/N
Term
 Standard Deviation Sample
Definition
 SD = √SS/n-1
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