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Population standard deviation:
=(
 )
σ
Xi μ 2N
Population variance:
=

σ2 Xi μ2N
Sample standard deviation:
=


s Xi X2n 1
Sample variance:
=


s2 Xi X2n 1
Combinations:
! !  !
n r n r
Permutations:
!  !
n n r
Normal curve standardizing formula:
=

z Xi μσ
Standard Error of the Mean:
=


σx σn∙N nN 1
Estimated Standard Error of the Mean:
=


σx sn∙N nN 1
Standard Error of the Proportion:
=


σp p∙qn∙N nN 1
Specific formula for the estimation of
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This note was uploaded on 09/08/2011 for the course ECO 3411 taught by Professor Staff during the Fall '08 term at University of Central Florida.
 Fall '08
 Staff

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