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maksim [4K]
3 years ago
12

An urn initially contains 2 balls, one of which is red and the other blue. At each stage a ball is randomly selected. If the sel

ected ball is red, then it is replaced with a red ball with probability .7 or with a blue ball with probability .3; if the selected ball is blue, then it is equally likely to be replaced by either a red or blue ball.
Spanish
1 answer:
slava [35]3 years ago
7 0

Answer:

2

Explanation:

An urn initially contains one red and one blue ball. At each stage, a ball is randomly chosen and then replaced along with another of the same color. Let X denote the selection number of the first chosen ball that is blue. For instance, if the first selection is red and the second blue, then X is equal to 2.

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