Puzzle - measures of central tendency - Yr 7+. Knowledge of definitions of mean, median and mode. Familiarity with algebra.
Averages - Yr 7+. Definition of average, familiarity with algebra.
Mean median max puzzle - Yr 7+.
Average is always an integer puzzle - Yr 7+.
Median of a long list - Yr 9+. Definition of median, familiarity with counting methods.
Mean score on a test - Yr 9+. Algebra, definition of mean. Word problem.
Variety of tricky word problems involving mean, median, mode and range. - Yr 9+.
Medium of a sum - Yr 11+. Summation notation and basic results.
Measures of central tendency for arithmetic and geometric progressions - Yr 11+.
Median of geometric progression (trick!) - Yr 11+.
Continuous random variable questions - Yr 12. Knowledge of pdf and optionally cdf, integration.
How to make a pdf - choosing a constant - Yr 12. Knowledge of pdf definition, simultaneous equations.Return to main page