The Normal Distribution
Bell-curve shape, z-scores, empirical rule 68/95/99.7%, standardised values, and statistical analysis exam practice.
Active lessons
3
Status
Active
Lesson flow
Learn -> Guided Practice -> Independent Practice -> Mastery Quiz
How to use this unit
- Start from lesson 1 and move through the pathway in order.
- Use guided practice before attempting independent practice.
- Mastery quizzes check whether the skill is ready for review or extension.
Unit pathway
Lesson pathway
3 of 3 active
Lesson 1
Normal Distribution Revision
Consolidate Year 12 Standard 2 statistics foundations before the normal distribution: review mean and standard deviation, interpret spread, and recall the shape of a symmetric bell-curve distribution — preparation for z-scores and the empirical rule.
Lesson 2
Normal Distribution and Z-Scores
Calculate and interpret z-scores, standard deviations from the mean, and empirical-rule percentages.
Lesson 3
Statistical Analysis Exam Practice
Practise mixed HSC-style statistical analysis questions using scatterplots, regression, residuals, z-scores, and normal distributions.
Part of the Online Learning Package
Unit previews stay public, while individual lessons require active online learning access.