Quartiles and Averages
Topic Revision
Quartiles
Notes from Leckie & Leckie's Success Guide.
Mean and mode
Notes from Leckie & Leckie's Success Guide.
Interquartile range
Notes from Leckie & Leckie's Success Guide.
Past Paper Questions
Calculate median and interquartile range and comment (Q5 P1 2024)
Calculate median and interquartile range and comment (Q9 P1 2023)
Web Resources
Interactive Quizzes
Interquartile Range (IQR) (from khanacademy.org)
Mean from a list (from transum.org)
Median from a list (from transum.org)
On-line Calculators
Descriptive statistics calculator (from mathportal.org)
Interactive Resources
Plop It! Mean, mode, median (from shodor.org)
Finding Median of a Data Set (from geogebra.org)
Finding the Interquartile Range (from geogebra.org)
