Edexcel Alevel Further Mathematics 'Statistics 3 (S3)' Revision
Contains a list of all the formulae you need for the exam, as well as further notes and tips on the Edexcel specification of Statistics 3 (S3).
 Created by: Applequestria
 Created on: 080716 11:16
First 62 words of the document:
Statistics 3
Formulae
2) 2
Sampling ~( , ~( ,
, )
+ ~( + , 2 2
+ 2 2
)
2 2 2 2
 ~(  , + )
() = ()()
( + ) = +
(  ) = 
( + ) = 2 2
+ 2 2
(  ) = 2 2
+ 2 2
The Normal Distribution () = ; unbiased estimator
~(, 2 )

=
= =
2 2 2
= = =
1 1
2
~ (, )

=
( ) =
2 2
( ) = =
2 2
~ ( , ),
~ ( , )
(  )(  )
=
2
2
+
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