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is a complex cube root of unity. When an unbiased die is thrown times, if are the numbers appeared on the die, then the probability that and satisfy is
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Important Questions on Probability
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A non-zero integer is selected randomly from the set of integers The probability that is
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Out of consecutive integers two integers are drawn at random. The probability that their sum is odd is
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If a proper divisor of the integer is selected at random, then the probability that it is an odd number is
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A box contains red, white and blue balls. If balls are drawn from the box at random one after the other without replacement, then the probability that they are red balls and white ball is
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A bag contains white balls and black balls. Another bag contains white balls and black balls. If one ball is drawn randomly from each bag, then the probability that the two balls drawn are both white is
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From consecutive integers three integers are selected at random. The probability that their sum is divisible by is
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An executive in a company makes on an average telephone calls per hour at a cost of Rs. per call. The probability that in any hour the cost of the calls exceeds a sum of Rs. is
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If and are two events such that and , then
