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 (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)
