I am new to probability , I do one question and stuck for days. Would you all can give me a hint on it?
There are () balls in a bin. are black, and is red. players each draw a ball from the bin randomly in a round-robin fashion, until the red ball is drawn.
a) What is the probability that the th player draw the red ball, for ?
b) Suppose there are players, red balls and black balls in the bin, what is the probability that first player draw the red ball first?
I just think about the result of two players game,
am I doing in the right way or not, if yes, how should I compute this sequence?
c) Suppose the balls are drawn with replacement instead, what are the answers to a) and b)?
c)b)
+
Am I doing in the correct way?
And about a) and c)a)
I fail when the number of is different, I don't really know what exactly it is running. Can anyone give me a hint on it?
Thank so much
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