Ages 9 to 11

Data, Decisions & Probability

Real-Life Averages, Surveys, Misleading Data, Risk & Evidence-Based Decisions

£2.99

Secure payment. Your download appears the moment you've paid.

The seventh pack in the Ages 9 to 11 Maths collection. Children learn to read and question data: mean, median, mode and range, sample size and bias, leading survey questions, percentage change, misleading graphs, correlation versus cause, probability as fractions and percentages, fair games, risk and reward, and turning evidence into a real decision.

What's included

Reading a survey and what the percentages really say
Mean, median, mode and range compared
Why an average can hide a very different spread
Choosing the right average for the situation
Percentages in surveys and equal proportions
Small samples and why 80% can mean four children
Sample size, bias and who you actually asked
Leading questions and missing answer options
Percentage increase, decrease and honest comparisons
Misleading graphs, truncated axes and missing labels
Correlation, cause and what else might explain it
Probability as fractions and percentages, fair games, risk and reward

Who it's for

Parents and carers of children aged 9 to 11 ready to question data, weigh risk and make evidence-based decisions.