Data and Statistics
These problems are designed for classroom use to get students at Stages 3, 4 and 5 thinking about handling data and statistics.
Statistical Shorts Stage: 3 and 4 Challenge Level: 
Can you decide whether these short statistical statements are always, sometimes or never true?
Which Spinners? Stage: 4 and 5 Challenge Level:
Can you work out which spinners were used to generate the frequency charts?
Which List Is Which? Stage: 4 Challenge Level:
Six samples were taken from two distributions but they got muddled up. Can you work out which list is which?
Stats Statements Stage: 5 Challenge Level:
Are these statistical statements sometimes, always or never true?
Or it is impossible to say?
Data Matching Stage: 5 Challenge Level:
Use your skill and judgement to match the sets of random data.
Understanding Hypotheses Stage: 3, 4 and 5
This article explores the process of making and testing hypotheses.
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NRICH is part of the family of activities in the Millennium Mathematics Project.
NRICH is part of the family of activities in the Millennium Mathematics Project.