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Odd One Out

In this short problem, can you deduce the likely location of the odd ones out in six sets of random numbers?

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Very Old Man

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Data Matching

Stage: 5 Challenge Level: Challenge Level:1

Four different, unknown, probability distributions have each been used four times to generate 16 sets of data. By searching for patterns in the data, can you work out which groups of 4 are most likely to have come from the same distributions?


If you like, you may download a spreadsheet containing these numbers and an additional data set.
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. More information on many of our other activities can be found here.
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NRICH is part of the family of activities in the Millennium Mathematics Project.