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Making Statistics Vital
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Discrete Random Variables: DRVs from a Bag
This exercise is designed to ensure that students know how to find the expected value, E(X), and the variance, Var(X) for a discrete random variable, and that the probabilities in a probability distribution always add to one. Students are given a selection of numbers and are challenged to establish those combinations which have a viable probability distribution. The accompanying spreadsheet is available to aid students in their investigations.
This resource is part of the Making Stats Vital collection from Jonny Griffiths.
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DRVs from a bag (presentation) 231.5 KB
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DRVs from a bag (activity sheet) 16.85 KB
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DRVs from a bag (presentation) 231.5 KB -
DRVs from a bag (activity sheet) 16.85 KB
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