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8128Continuous Random Variables : Expectation theory : Exam Question

8032Probability : Theoretical : Exam Question

7939Probability : Tree diagrams : Exam Question

7938Discrete Random Variables : Expectation theory : Exam Question

7937Summarising data : Measures of location : Exam Question

7936Correlation and Regression : Regression : Exam Question

7935Summarising data : Measures of location : Exam Question

7934Correlation and Regression : Correlation : Exam Question

7804Summarising data : Measures of dispersion : Exam timed O-test

7802Discrete Random Variables : Expectation theory : Exam timed O-test

7801Correlation and Regression : Regression : Exam timed O-test

7800Correlation and Regression : Correlation : Exam timed O-test

7799Probability : Theoretical : Exam timed O-test

7758Summarising data : Measures of dispersion : Timed O-test

7751Probability : Theoretical : Timed O-test

Symbols O-test

Symbols O-test 2

Creating a model

Matching O-test

Vocabulary O-test

Randomised Exam Q 2000

Randomised Exam Q 2006

Discrete v. continuous O-test

Find out how to display data using box and whisker plots, stem and leaf diagrams or histograms, and how to summarise data with measures of central location (mean, median, mode and quartiles) or measures of dispersion (range, interquartile range, variance and standard deviation), together with ideas of outliers and skewness. Use your graphic display calculator (GDC) to help speed up the calculations. See the Statistics diagrams page for a summary of the common diagrams used and use the Calculations page to practise using your calculator to find the summary statistics.

Bar charts

Bar charts 2

Bar charts 3

Pie charts

Pie charts 2

Pie charts 3

Line graphs

Line graphs 2

Cumulative frequency graphs

Cumulative frequency graphs 2

Histograms

Histograms 2

Histograms 3

Randomised Exam Q 2008

Randomised Exam Q 2008

Calculate standard deviation

Variance

Standard deviation

Calculate standard deviation 2

Calculate standard deviation 3

Interquartile range

Skewness

Standard deviation on a GDC

Standard deviation on a GDC 2

Interquartile range on a GDC

Summary stats on a GDC

Skewness O-test

Timed O-test

Exam O-test 1

Exam O-test 2

Exam timed O-test

Randomised Exam Q 2000

Randomised Exam Q 2002

Randomised Exam Q 2006

Randomised Exam Q 2008

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Randomised Exam Q 2010

Quartiles from a histogram

Quartiles

Mean

Mean of a frequency table

Mean of a grouped frequency table

Coding

Coding 2

Coding 3

Median

Mean and median 2

Quartiles 2

Mean on a GDC

Mean on a GDC 2

Quartiles on a GDC

O-test 7

O-test 4

Randomised Exam Q 2000

Randomised Exam Q 2008

Randomised Exam Q 2011

Randomised Exam Q 2011

Box plots and outliers

Types of charts

Shapes of distributions

Histograms, scatter graphs

More about histograms

More about histograms 2

More about histograms 3

Stem and leaf diagrams

Stem and leaf diagrams 2

Stem and leaf diagrams 3

Stem and leaf diagrams 4

Box and whisker plots

Box and whisker plots 2

Box and whisker plots 3

Box and whisker plots 4

Box and whisker plots 5

Box and whisker plots 6

Box and whisker plots 7

Skewness

Outliers

Outliers 2

Box plots and outliers 2

Caffeine & finger tapping

Box and whisker plots on a GDC

Scatter graphs on a GDC

Timed O-test 1

Timed O-test 3

Exam O-test 1

Exam O-test 2

Randomised Exam Q 2000

Randomised Exam Q 2000

Randomised Exam Q 2003

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Birthdays

The Monty Hall problem

The spinner experiment

Another spinner experiment

The marbles experiment

Buffon's needle

Buffon's needle - extended

Finding an area

Birthdays - extended

The coin experiment

The coin and die experiment

The die and coin experiment

The roulette wheel experiment

The ball and urn experiment

The triangle experiment

A fair dice

Pack of cards

Counters

Ordering O-test 4

Conditional probability

Conditional probability 2

Conditional probability 3

Conditional probability 4

Conditional probability 5

Combining probabilities

Combining probabilities 2

Independent events

Independent events 2

Independent events 3

Mutually exclusive events

Mutually exclusive events 2

Exhaustive events

Memorise the formulae

O-test 9

Vocabulary O-test

Exam O-test 1

Exam O-test 2

Timed O-test

Exam timed O-test

Randomised Exam Q 2000

Randomised Exam Q 2000

Randomised Exam Q 2002

Randomised Exam Q 2002

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Conditional probability

Using tree diagrams

Using tree diagrams 2

Using tree diagrams 3

Using tree diagrams 4

Using tree diagrams 5

Using tree diagrams 6

Creating tree diagrams

Creating tree diagrams 2

Creating tree diagrams 3

Creating tree diagrams 4

Disease test

Lie detector tests

Timed O-test

O-test 5

O-test 6

O-test 7

O-test 8

Exam O-test 1

Exam O-test 2

Randomised Exam Q 2005

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Randomised Exam Q 2014

2 set probabilities

3 set probabilities

3 set probabilities 2

2 set probabilities 3

2 set probabilities 2

2 set probabilities 4

3 set probabilities 3

2 sets

3 sets

Mutually exclusive events

Complementary events

Construct a 3 set diagram

Timed O-test

O-test 5

O-test 6

O-test 7

O-test 8

Exam O-test 1

Randomised Exam Q 2000

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Example 1

Probability distributions

Cumulative distribution

Example 2

Example 3

Example 4

Probabilities

Find the distribution

Exam O-test

Randomised Exam Q 2000

Randomised Exam Q 2001

Randomised Exam Q 2008

Randomised Exam Q 2008

Fairground game

Fairground game 2

Exam O-test 1

Randomised Exam Q 2005

Randomised Exam Q 2008

Randomised Exam Q 2008

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Randomised Exam Q 2009

Find the expectation

Find the variance

Expectation

Mean and variance

More on expectation

Linear functions

Linear functions 2

Using a GDC

Timed O-test

O-test

Exam O-test 2

Exam O-test 3

Exam timed O-test

Randomised Exam Q 2000

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A basic example

The dice experiment

Expectation and variance

Expectation and variance 2

O-test

Find F(x) 1

Find F(x) 2

Find F(x) 3

Find F(x) 4

Find the pdf

Exam O-test 1

Randomised Exam Q 2000

Randomised Exam Q 2000

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Randomised Exam Q 2006

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Expectation of a function of X

Expectation of a function of X 2

Expectation of a function of X 3

Expectation of a function of X 4

Variance of a function of X

Variance of a function of X 2

Variance of a function of X 3

Variance of a function of X 4

Exam O-test 2

Randomised Exam Q 2009

Randomised Exam Q 2014

Calculate probabilities 3

Visualise a(x + b) Pdf

Visualise a(b - x) Pdf

Visualise Quadratic Pdf

Visualise Simple Cubic Pdf

Visualise Composite Pdf

Verify a PDF

Verify a PDF 2

Calculate probabilities

Calculate probabilities 2

Mean

Mean 2

Mean 3

Mean 4

Variance

Variance 2

PDFs using a GDC

O-test

Randomised Exam Q 2000

Calculate the median 4

Calculate the median 3

Calculate the median

Calculate the median 2

Visualise the median

Visualise the median 2

Visualise the median 3

Find the median using a GDC

O-test

Randomised Exam Q 2008

Calculate the mode

Visualise the mode

Calculate the mode 2

Calculate the quartiles

Visualise the quartiles

Visualise the quartiles 2

Visualise the quartiles 3

Calculate the PMCC

Football

Two dice

Babies

Calculate the PMCC 3

Calculate the PMCC 2

Calculate Sxx, Syy and Sxy 2

The PMCC

Calculate Sxx, Syy and Sxy 1

Plotting points

Guess the PMCC

Population v. area

Traffic accidents

Sheep

Calculate the PMCC on a GDC

O-test 1

Timed O-test

Exam O-test 1

Exam O-test 2

Exam timed O-test

Randomised Exam Q 2001

Randomised Exam Q 2001

Randomised Exam Q 2003

Randomised Exam Q 2007

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Calculate the regression line 3

Use the regression line 2

Football

Scatter diagrams

More on Scatter diagrams

The y on x line

Least squares

Using the mean point

Calculate the regression line

Calculate the regression line 2

Using the regression line

Vocabulary

The regression line on a GDC

Correlation & regression on a GDC

Timed O-test

O-test

True or false

Exam O-test 1

Exam O-test 2

Exam timed O-test

Randomised Exam Q 2000

Randomised Exam Q 2001

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Mindmap

Glossary and quiz

Timed O-test