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A contestant is facing 10 closed doors. Behind one of these doors there is a prize....

A contestant is facing 10 closed doors. Behind one of these doors there is a prize. The

contestant can open one door at a time to find the prize, up to 4 times (so the candidate stops when the prize is found but can not open more than 4 doors). What is the probability of winning the prize?

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Answer #1

Total 10 doors are available.

P(win price) = P(1) + P(2) + P(3) + P(4)

= 0.4

So, 0.4 is the probability of winning the prize.

Please comment if any doubt. Thank you.

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