Walter Maths Academy

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Introduction - Measures of Centrality

Median and Quartiles

Stem and Leaf Diagrams

Stem and Leaf Diagrams - Advantages and Disadvantages

Back to Back Stem and Leaf Diagrams

Box and Whisker Plots

Box and Whisker Plots - Worked Example 1

Box and Whisker Plots - Worked Example 2

Standard Deviation and Variance

Standard Deviation and Variance - Combined Sets of Data

Grouped Data

Histograms

Histograms (Frequency Density) - Worked Examples

Histograms - Practice Questions and Solutions

Cumulative Frequency Curves

Cumulative Frequency Curves - Median, Quartiles & Percentiles

Coding

Coding - Worked Examples

General Review

Permutations - Introduction

Arrangements - Objects in fixed Positions

Arrangements - Objects in fixed Positions (Worked Solutions)

Arrangements - Objects must be together

Arrangements - Objects must be together (Worked Solutions)

Arrangements - Objects must not be together

Arrangements - Objects must not be together (Worked Solutions)

Quiz - Arrangements Random Questions

Arrangements - Fixed number of objects in between two objects

Arrangements - Fixed number of objects in between two objects (Worked Solutions)

Arrangements - Questions Involving Probability

Arrangements - Questions Involving Probability (Worked Solutions)

Arrangements - Questions Involving numbers

Arrangements - Questions Involving Numbers (Worked Solutions)

Quiz - Arrangements - Questions Involving Numbers

Permutations of r items from n items (Worked Solutions)

Permutations of r items from n items - Items not next to each other

Permutations of r items from n items - Items not next to each other (Worked Solutions)

Combinations of r items from n items

Combinations of r items from n items (Worked Solutions)

Combinations - Objects cannot be together

Combinations - Objects cannot be together (Worked Solutions)

Combinations - More objects selected than others

Combinations - More objects selected than others (Worked Solutions)

Combinations of r items from n items - Items not distinct

Combinations of r items from n items - Items not distinct (Worked Solutions)

Combinations - Questions Involving Probability

Combinations - Questions Involving Probability (Worked Solutions)

Topic Review

Probability - Introduction

Independent Events

Independent Events (Worked Solutions)

Mutually Exclusive Events

Mutually Exclusive Events (Worked Solutions)

Conditional Probability

Conditional Probability (Worked Solutions)

Probability Tree diagrams 1

Probability Tree diagrams 1 (Worked Solutions)

Probability Tree diagrams 2

Probability Tree diagrams 2 (Worked Solutions)

Questions Involving Permutations & Combinations

Questions Involving Permutations & Combinations (Worked Solutions)

Discrete Random Variables - Introduction

Discrete Random Variables (Worked Solutions)

Discrete Random Variables - Expectation

Discrete Random Variables - Expectation (Worked Solutions)

Discrete Random Variables - Variance

Discrete Random Variables - Variance (Worked Solutions)

Binomial Distribution - Introduction

Binomial Distribution - Introduction (Worked Solutions)

Binomial Distribution - Calculating probabilities

Binomial Distribution - Calculating probabilities (Worked Solutions)

Binomial Distribution - Expectation & Variance (Worked Solutions)

Binomial Distribution - Expectation & Variance (Worked Solutions)

Geometric distribution - Introduction

Geometric Distribution - Introduction (Worked Solutions)

Geometric distribution - Expectation

Geometric Distribution - Expectation (Worked Solutions)

Introduction

The Standard Normal Variable

The Standard Normal Variable (Worked Solutions)

Standardizing Any Normal Variable 1

Standardizing Any Normal Variable 1 (Worked Solutions)

Standardizing Any Normal Variable 2

Standardising Any Normal Variable 2 (Worked Solutions)

Using Normal Tables in Reverse

Using Normal Tables In Reverse (Worked Solutions)

Using Normal Tables in Reverse For Any Variable 1

Using Tables In Reverse for Any Normal Variable 1 (Worked Solutions)

Using Tables In Reverse for Any Normal Variable 2

Using Tables In Reverse for Any Normal Variable 2 (Worked Solutions)

Finding mean and standard deviation 1

Finding mean and standard deviation 1 (Worked Examples)

Finding mean and standard deviation 2

Finding mean and standard deviation 2 (Worked Examples)

Normal Approximation to Binomial Distribution 1

Normal Approximation to Binomial Distribution 1 (Worked Examples)

Normal Approximation to Binomial Distribution 2

Normal Approximation to Binomial Distribution 2 (Worked Examples)