Quartiles and Averages
Topic Revision
Quartiles
Notes from Leckie & Leckie's Success Guide.
Mean and mode
Notes from Leckie & Leckie's Success Guide.
Semi-interquartile range
Notes from Leckie & Leckie's Success Guide.
Past Paper Questions
Calculate median and semi-interquartile range (Q5 P1 2019)
Find the semi-interquartile range (Q2 P1 2017)
Median and semi-interquartile range (2015)
Web Resources
Interactive Quizzes
Q8-11 Comparing data sets quiz (from bbc.com)
On-line Calculators
Descriptive statistics calculator (from mathportal.org)
Interactive Resources
Plop It! Mean, mode, median (from shodor.org)
