mathmari
Gold Member
MHB
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Hey! 
I am looking at the following and need some hints:
A lottery wheel contains five red, blue and yellow balls. For each color the balls are labeled with the numbers $ 1,2,3,4 $ and $ 5 $. A good fairy draws from the lottery wheel two successive balls. A ball which has already been drawn is not moved into the drum.
Do we consider here the hypergeometri distribution?
How can we model this experiment as a discrete probability space?
How could we calculate the probability that the ball that has been picked is labeled by $2$ ?
Also how could we calculate the probability that two balls with the label-sum $4$ are picked?
(Wondering)

I am looking at the following and need some hints:
A lottery wheel contains five red, blue and yellow balls. For each color the balls are labeled with the numbers $ 1,2,3,4 $ and $ 5 $. A good fairy draws from the lottery wheel two successive balls. A ball which has already been drawn is not moved into the drum.
Do we consider here the hypergeometri distribution?
How can we model this experiment as a discrete probability space?
How could we calculate the probability that the ball that has been picked is labeled by $2$ ?
Also how could we calculate the probability that two balls with the label-sum $4$ are picked?
(Wondering)