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Recent questions tagged probability-mcq-with-answers

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Q: The probability of a man hitting a target is 0.25. He shoots 7 times. What is the probability of his hitting at least twice?
    The probability of a man hitting a target is 0.25. He shoots 7 times. What is the probability of his hitting at least twice? Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: A lot of 100 watches is known to have 10 defective watches. If 8 watches are selected (one by one with replacement) at random,
    A lot of 100 watches is known to have 10 defective watches. If 8 watches are selected (one by one with ... least one defective watch? Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: The probability distribution of a random variable X is given below:
    The probability distribution of a random variable X is given below: (i) Determine the value of k. (ii) Determine P (X ≤ ... P (X > 2). Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: A biased die is such that P (4) = 1/10 and other scores being equally likely. The die is tossed twice. If X is the ‘number of fours seen’,
    A biased die is such that P (4) = 1/10 and other scores being equally likely. The die is tossed twice. If ... of the random variable X. Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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Q: Two probability distributions of the discrete random variable X and Y are given below.
    Two probability distributions of the discrete random variable X and Y are given below. Prove that E(Y)2=2E(X). Select the correct answer from above options...
asked Nov 20, 2021 in Education by JackTerrance
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