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Playing with Probability - Efrons Dice/Activity: Difference between revisions
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Playing with Probability - Efrons Dice/Activity (view source)
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SimonKnight (talk | contribs) (Created page with "This lesson idea is also available to download file:Efron's Dice Activity.doc <center>'''Efron’s Dice Lesson Ideas'''</center> '''Pedagogical rationale''': We are used...") |
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'''Introduction: '''I have some large wooden dice that are coloured green, yellow, red and purple. I have added stickers so they have the numbers shown on the nets. | '''Introduction: '''I have some large wooden dice that are coloured green, yellow, red and purple. I have added stickers so they have the numbers shown on the nets. | ||
[[Image:nets]] | [[Image:nets.png]] | ||
I play a game against the pupils where they choose a die, I then choose one and we roll at the same time, with the higher score winning. Pupils note that it is impossible to get a draw. | I play a game against the pupils where they choose a die, I then choose one and we roll at the same time, with the higher score winning. Pupils note that it is impossible to get a draw. | ||
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When it comes to comparing red and purple this method is more difficult (but still possible). A better method here might be to draw a probability table: | When it comes to comparing red and purple this method is more difficult (but still possible). A better method here might be to draw a probability table: | ||
[[Image:probability table]] | [[Image:probability table.png]] | ||
The coloured letter shows which one wins; the probability of purple beating red is 24/36, which is 2/3. | The coloured letter shows which one wins; the probability of purple beating red is 24/36, which is 2/3. | ||
