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Jack says he can predict and wants to test out which barrel has water in it and which does not. The test consists of giving
Jack says he can predict and wants to test out which barrel has water in it and which does not. The test consists of giving Jack 10 times 2 barrels which are completely identical, other than the fact that one of them has water in it.
- Let X be the number of correct choices. If jack senses there is oil in a barrel with a 0.8 probability what is the distribution of X, the expected value (E[X]) and the variance (var[X])?
- If jack predicts there is water with a probability of 0.8, what is the probability that Jack has chosen the right barrel at least 8 times?
- What would be the minimum probability that Jack had 8 barrels guessed correctly if he would have secretly lied and just randomly chose the barrels?
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