Basic Statistical Terms Flashcards
Complete collection to be studied
Population
Part of population
Sample
Characteristic of a population
Parameter
Characteristic of a sample
Statistic
Mean in Population Parameters
μ
Mean in Sample Statistics
x̄
Standard Deviation in Population Parameters
σ
Standard Deviation in Sample Statistics
s
Proportion of population having an attribute in Population Parameters
P
Proportion of population having an attribute in Sample Statistics
p
Proportion of population not having an attribute in Population Parameters
Q (=1-P)
Proportion of population not having an attribute in Sample Statistics
q(=1-p)
Correlation coefficient in Population Parameters
ρ
Correlation coefficient in Sample Statistics
r
Number of elements in Population Parameters
N