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Statistics Cheat Sheet: Definitions and Examples, Cheat Sheet of Statistics

Cheat sheet of Statistics with definitions and examples

Typology: Cheat Sheet

2019/2020

Uploaded on 10/23/2020

rubytuesday
rubytuesday 🇺🇸

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
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 

 
  # (
μ& 
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# !*!
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Download Statistics Cheat Sheet: Definitions and Examples and more Cheat Sheet Statistics in PDF only on Docsity!

μ  &   

   ,^       #    

2

( x  μ)

2

n

2

x

2

n

2 

    s

2 &        #'

 s^2 =

 ( x^ ^ x^ )^2

n  1

    s^2 =

x

2

 ^

(  x )

2

n

n  1

       s      

s

n

    s^2

n 1

n 2

 & ^  ^

s 1

2

n 1

s 2

2

n 2

 #'"!!2 4 3+!""!"""#"!#"!$#2μ 4 3 " "$'"!!2 (^)  3+!""!"""!"#1! " "1!!!"μ 4  "-!""!"+!" (!" "% μ 4 

t =

x  μ 0

s

n

$μ 4 !"#"3#!"#""-!""!" ! ,  (^)  +μAμ 4 ""-!""!"!'!"$ "!$  (^)  +μ@μ 4 ""-!""!"!'"$""-!" #"!!'" ! " "'!""- !""!"% !"$ "+""-!""!"!"/% 0!)"-$#!5#!"  $" "  (^)  +μ?μ 4  "-$#!""-!""!"% !"$#"2"! "!!" "  "3 "-$#!!!"" " $# !2!#!#'4,493) ""# '"!!""" "$'"!!,     + # &  !!!! """"#!!#"&"',#" !# "!#$!'# "%" ' %,#  !#"! $%,   &#""$ ! %" !4,491,!"!#$'# "%" & ""2!!#>4,493.  ' # 1 5 4,495 6 4,4949 7 4,48= 8 4,495: 9 4,496 : 4,494< ; 4,494:

 4 +μ>4,49*  +μA4,49 #""!" $"'# !+

x = 0.0508

s^2 =

( x^ ^ x^ )^2

n  1

(0.051 0.0508) 2 + (0.0505  0.0508) 2 + etc ...

= 9.15  10 ^7

s = s^2 = 9.56  10 ^4

"-!""!"!+ t =

x  μ 0

s

n

9.56  10 ^4

μ 4 >4"  -!"-"!"     "%#"! "  4 +!""!"""!""%#"! #2μ 5 >μ 6 3  (^)  +!""!"""!""%#"! ## ! " """ 2μ 5 ?μ 6 )μ 5 Aμ 6 )μ 5 @μ 6 3 

( O  E ) 2

E

 =^

!##^3 !#%$")#,%$"!#!#1+36)"#"!#!$!!#(

$"!" $!+ !#$"!%%$"!3)5)5)4)4)4)3)4)2)"#^3 "##"#"*

( O  E ) 2

E

 =^

!##^3 !#%$")#,%$"!#!#1+36)"&#!# 1 + $""(

%$" #^1 +#^3

1 +# 2 +# 3 +# (^4)

 



 

1 +# (^3)

1 +# 2 +# 3 +# (^4)

 



 

 (# 1 +#^2 )+^ $")#'#%$"*

E =

( row total )( column total )

grand total

," $!"##"#""#  2 = ( O^ ^ E )^

2  (^) E

#,%$"!##^3 !#%$"+

E =

( row total )( column total )

grand total

( O  E ) 2

E

 =^

+ etc ... = 91.73

 .^  !  %(!   ,',,-%" ,     

 P ( A and B ) = P ( A )  P ( B )"!  

P ( A or B ) = P ( A ) + P ( B )  P ( A and B )

 P ( A | B ) =

P ( A and B )

P ( B )

    P ( A | B ) =

P ( B | A )  P ( A )

P ( B )

   &   $   $  $"" '"   ' "($ "$     ($"  !'    $'    $   !  $)