Ravi has a bag full of 10 Nestle and 5 Cadbury chocolates. He draws two chocolates. What is the probability that he got at least one Nestle chocolate?
The probability of having at least one tail in 5 throws of a coin is |
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A bag contains 5 yellow and 4 brown pencils. If two pencils are drawn, what is the probability that the pencils are of the same colour? |
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A single letter is drawn at random from the word, "ASPIRATION", the probability that it is a vowel is? |
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The probability that a man can hit a target is 3/4. He tries 5 times. The probability that he will hit the target at least three times is: |
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An unbiased dice is rolled 3 times. The probability that the value on the dice is not more than 4 in any of the 3 rolls is: |
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Probability of occurrence of event A is 0.5 and that of event B is 0.2. The probability of occurrence of both A and B is 0.1. What is the probability that none of A and B occur? |
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An unbiased coin is tossed 5 times. If tail appears on first four tosses, then probability of tail appearing on the fifth toss is: |
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X and Y are two independent events. The probability that X and Y occur is 1/12, and the probability that neither occur is 1/2, the probability of occurrence of X can be: |
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An unbiased coin is tossed n times. If the probability of getting 4 tails equals the probability of getting 7 tails, then the probability of getting two tails is: |
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Sudhanshu and Pankaj stand in a circle with 10 other persons. If the arrangement of the person is at random, then the probability that there are exactly 3 persons between Sudhanshu and Pankaj is? |
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