#0, infinite probability
Posted by girl_honey on May-22-10 at 06:48 PM
hi i am having trouble with the following question, wondering if someone can help me, thanks in advanceQ. if i have a very large number of pool balls in a bag in the ratio of 3 red to 2 yellow, what is the probability of drawing exactly 2 red and 1 yellow ball from the bag? the number of balls may be considered infinite thank you. Oyinkan
#1, RE: infinite probability
Posted by alexb on May-22-10 at 06:54 PM
In response to message #0
Probability of drawing a red ball is 3/5. Do you know why? What is the probability of drawing a yellow ball?There are three ways to retrieve 2 red and 1 yellow ball. In order of the balls appearance out of the bag: r-r-y, r-y-r, y-r-r Probability you are looking for is the sum of the probabilitles of these three events. The probability of each of these is the product of probabilities of drawing a ball of a given color.
#2, RE: infinite probability
Posted by girl_honey on May-22-10 at 10:12 PM
In response to message #1
thanks for the help. it was the 'infinite' part that confused me.Oyinkan.
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