Non-standard proportions and inverse normal calculations with technology

What this note covers

1. When the rule runs out and technology takes over
2. The forward calculation: areas from a lower and an upper bound
3. Turning non-standard proportions into counts and statements
4. The inverse normal: from an area to a value
5. Two-sided inverse problems: central intervals and symmetric limits
6. Recovering a parameter from a non-standard area
7. Showing working when the calculator does the work
8. How this is examined in the SACE Stage 2 paper

8 sections · 12 key terms & formulas · 6 common mistakes