STATISTICS

 

 

 

 

PAGE CONTENTS

 

[SECTION 1] [SECTION 2] [SECTION 3] [SECTION 4]

 

SECTION 1

 

central tendency measurements

the mean
the mode & modal class
the median

dispersion part 1 - display of data

block graphs
grouped data
frequency density
histograms

dispersion part 2 - display of data

stem & leaf diagrams
cumulative frequency
percentiles
box & whisker plots

dispersion part 3 - summary of data

variance
standard deviation
variance & stand. deviation for grouped data
skewness
outliers

probability part 1

concepts
set notation
Venn diagrams

probability part 2

independent events (AND rule)
mutually exclusive events (OR rule)
tree diagrams

probability part 3

non-mutually exclusive(compatible) events

regression

dependent & independent variables
scatter diagrams
linear regression

correlation

product moment correlation coefficient

discrete random variables part 1

concept
probability function
cumulative distribution function

discrete random variables part 2

mean of X    E(X)
mean of a function of X    E(f(x))
linearity of the expectation operator   E[aX+b]

discrete random variables part 3

variance Var(X)
variance & expected values
variance & linearity

discrete random variables part 4

discrete uniform distribution
derivation of expected value
derivation of variance

the Normal distribution part 1

introduction
the normal distribution
standard deviation & probability

the Normal distribution part 2

standardizing
z tables
use of  N(#,#)
cumulative distribution function

the Normal distribution part 3

use of z tables
case of P(Z<z)
case of P(Z>z)
case of P(Z>-z)
case of P(Z<-z)

 

 

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VIDEO

the mean
the median
stand. deviation 1
stand. deviation 2
stand. deviation 3
z-scores
confidence interval
goodness of fit
distrib. sample mean
t interval
chi-squared test
 
more...Video Library
 

INTERACTIVE

normal distribution
mean,median comprd 1
mean,median comprd 2
type I & II errors
linear regression
histogram,box whisker
 
 

EXAM PAPERS(.pdf)

Edxl S1 Statistics spec.
Edxl S1 Statistics ans.
Edxl S2 Statistics spec.
Edxl S2 Statistics ans.
Edxl S3 Statistics spec.
Edxl S3 Statistics ans.
 

TOPIC NOTES(.pdf)

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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