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Probability Test - 19
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Probability Test - 19
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  • Question 1/10
    4 / -1
    If X denotes the sum of the numbers obtained when two fair dice are rolled, then the variance and standard deviation of X are
    Solutions

  • Question 2/10
    4 / -1
    If the mean and variance of a Binomial variate X are 8 and 4 respectively, then P(X < 3) equals
  • Question 3/10
    4 / -1

    Solutions

  • Question 4/10
    4 / -1
    If the mean and variance of a random variable X having a Binomial distribution are 4 and 2 respectively, then find the value of P(X =1).
  • Question 5/10
    4 / -1
    A multiple choice examination has 5 questions. Each question has three alternative answers of which exactly one is correct. The probability that a student will get 4 or more correct answers just by guessing is
  • Question 6/10
    4 / -1
    Consider 5 independent Bernoulli's trials each with probability of success p. If the probability of atleast one failure is greater than or equal to 31/2, the p lies in the interval
  • Question 7/10
    4 / -1

  • Question 8/10
    4 / -1
    Two dice are thrown n times in succession. The probability of obtaining a double six atleast once is
  • Question 9/10
    4 / -1
    If X is a Binomial variate with the range {0, 1, 2, 3, 4, 5, 6} and P(X = 2) = 4P(X = 4), then the parameter p of X is
  • Question 10/10
    4 / -1
    If a fair coin is tossed 20 times and we get head n times, then probability that n is odd, is
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