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A bag contains 4 balls. Two balls are drawn at random, and are
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A bag contains 4 balls. Two balls are drawn at random, and are found to be white. What is the probability that all balls are white?

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A bag contains 4 balls. Two balls are drawn at random, and are found to be white. What is the probability that all balls are white?
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Question 1
There are two bags I and II. Bag I contains 3 white and 3 red balls and Bag II contains 4 white and 5 red balls. One ball is drawn at random from one of the bags and is found to be red. Find the probability that it was drawn from bag II.

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Question 2
Let be two events such that Then Statement 1: Statement 2:

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Question 3
A die marked 1, 2, 3 in red and 4, 5, 6 in green is tossed. Let A be the event, the number is even, and B be the event, the number is red. Are A and B independent?

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Question 4
An experiment succeeds twice as often as it fails. Find the probability that in the next six trails there will be at least 4 successes.

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Question Text
A bag contains 4 balls. Two balls are drawn at random, and are found to be white. What is the probability that all balls are white?