Teacher2Teacher |
Q&A #19029 |
From: Ralph
(for Teacher2Teacher Service)
Date: Nov 12, 2007 at 16:57:12
Subject: Re: Probability
Hi Chris, Thanks for writing to T2T. It's sometimes easier to "see" the probabilities such as the examples you gave from a chart. If you have students chart all 36 sums for the two dice, e.g.: 1 2 3 4 5 6 ------------------------------------------------- 1 2 3 4 5 6 7 2 3 4 5 6 7 8 3 4 5 6 7 8 9 4 5 6 7 8 9 10 5 6 7 8 9 10 11 6 7 8 9 10 11 12 They can then fairly quickly see how many of the sums, for example, are greater than or equal to 6 (and write this as a fraction with 36 as the denominator and simplify), how many sums are greater than 10, how many are less than 10, etc. Hope this helps, -Ralph, for the T2T service
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