Statistics 3 (Edexcel AS and A level Modular Math )

1. Combinations of Random Variables

1.1. Finding the Distribution of Random Variables

2. Sampling

2.1. Populations and Sampling

2.2. Random Sampling

2.3. Simple Random Sampling

2.4. Other Methods of Sampling

2.5. Non-random Sampling

2.6. Primary and Secondary Sources of Data

3. Estimation, Confidence Intervals and Tests

3.1. Concept of a Statistic and Sampling Distribution

3.2. Estimation of Population Parameters Using a Sample

3.3. Standard Error of the Mean

3.4. The Central Limit Theorem

3.5. Confidence Intervals

3.6. Hypothesis Tests

3.7. Hypothesis Test for the Difference Between Two Means

3.8. Large Samples

Review Exercise 1

4. Goodness of Fit and Contingency Tables

4.1. Forming a Hypothesis

4.2. Goodness of Fit

4.3. Degrees of Freedom

4.4. The Chi-squared (χ²) Family of Distributions

4.5. Testing Your Hypothesis

4.6. The General Method for Testing the Goodness of Fit

4.7. Applying Goodness-of-Fit Tests to Discrete Data

4.8. Applying Goodness-of-Fit Tests to Continuous Distributions

4.9. Contingency Tables

5. Regression and Correlation

5.1. Spearman’s Rank Correlation Coefficient

5.2. Testing the Hypothesis that a Correlation Coefficient Is Zero

5.3. Testing the Hypothesis that Spearman’s Population Rank Correlation Coefficient Is Zero

Review Exercise 2

Examination Style Paper

Appendix

Answers

Index