Term

Definition
Used to summarize and organize data 


Term

Definition
used to make predictions about a population by studying a sample from said population 


Term

Definition
does not represent the population accurately 


Term

Definition


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


Term

Definition
∑x_{1} + ∑x_{2} / n_{1} + n_{2} = M 


Term

Definition


Term

Definition


Term
Computation SS
Population 

Definition
SS = ∑x^{2}  (∑x)^{2 }/ N 


Term

Definition
SS = ∑x^{2 } (∑x)^{2} / n 


Term
Standard Deviation
Population 

Definition


Term
Standard Deviation
Sample 

Definition

