Revision notes.

Try this with General Mathematics

1. Close your notes and write the main idea in two sentences from memory.
2. Reopen the source and correct the first mistake or omission you find.
3. Add one example and one question to test whether you can apply the idea.

View General Mathematics resources on ATARMAXXING ↗

Topics in the resource inventory

• Scatter plots, explanatory and response variables and the statistical investigation process
• Pearson's r and r²: direction, strength, outliers and causality
• Least squares linear regression: interpreting slope and intercept in context
• Residual plots and choosing between linear and exponential models
• Exponential regression, interpolation, extrapolation and reliability of predictions
• The normal distribution: parameters, bell shape and the 68:95:99.7% rule
• Non-standard proportions and inverse normal calculations with technology
• Compound interest: finding FV, PV, n and I with the financial solver
• Future value annuities: regular savings, total interest and 'what if' questions
• Tax, inflation, fees and effective annual rates when comparing investments
• Present value annuities: a regular income from a lump sum and superannuation
• Reducing-balance loans: repayments, total interest and the outstanding balance
• Reducing the interest paid: payment frequency, extra payments, lump sums, offset accounts and rate changes
• Interest-only loans, sinking funds and comparison rates with fees
• Precedence tables, directed networks and dummy links
• Forward and backward scans: EST, LST, minimum completion time and the critical path
• Slack time, crashing tasks and the assumptions and limitations of the model
• Assignment problems and the Hungarian algorithm for minimum cost
• Maximum profit assignments, non-square arrays and multiple optimal solutions
• Interpreting assignment solutions: one-to-one assumptions and reasonableness in context