(New page: <math>P(red | 1 red roll) = P(red & 1 red roll) / P(1 red roll)</math> Start by calculating the probibility of each dice being picked times its probibility of rolling 2 reds <math>= (1/3)...) |
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| − | + | P(red | 1 red roll) = P(red & 1 red roll) / P(1 red roll) | |
Start by calculating the probibility of each dice being picked times its probibility of rolling 2 reds | Start by calculating the probibility of each dice being picked times its probibility of rolling 2 reds | ||
| − | + | ||
| + | = (1/3)(1/6)(1/6) + (1/3)(2/6)(2/6) + (1/3)(3/6)(3/6) | ||
then you simply take your answer over the aswer to part a to finish the formula and get your answer. | then you simply take your answer over the aswer to part a to finish the formula and get your answer. | ||
Latest revision as of 06:44, 17 September 2008
P(red | 1 red roll) = P(red & 1 red roll) / P(1 red roll)
Start by calculating the probibility of each dice being picked times its probibility of rolling 2 reds
= (1/3)(1/6)(1/6) + (1/3)(2/6)(2/6) + (1/3)(3/6)(3/6)
then you simply take your answer over the aswer to part a to finish the formula and get your answer.
