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Probability Test - 43

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Probability Test - 43
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  • Question 1
    4 / -1
    A and B are two independent events such that P(A) = ½ and P(B) = 1/3. Then P (neither A nor B) is equal to
    Solution

  • Question 2
    4 / -1
    If the probabilities of boy and girl to be born are same, then in a 4 children family the probability of being at least one girl is
    Solution

  • Question 3
    4 / -1
    A box containing 4 white pens and 2 black pens. Another box containing 3 white pens and 5 black pens. If one pen is selected from each box, then the probability that both the pens are white is equal to
    Solution

  • Question 4
    4 / -1
    The event A is independent of itself if and only if P(A) =
    Solution

  • Question 5
    4 / -1
    A locker can be opened by dialing a fixed three digit code (between 000 and 999). A stranger who does not know the code tries to open the locker by dialing three digits at random. The probability that the stranger succeeds at the kth trail is
    Solution

  • Question 6
    4 / -1
    In a throw of three dice, probability that a least one die shows up 1 is
    Solution

  • Question 7
    4 / -1
    A card is drawn at random from a well shuffled pack of 52 cards. The probability of getting a two of heart or two of diamonds is
    Solution

  • Question 8
    4 / -1
    A man and his wife appear for an interview for two posts. The probability of the husband’s selection is 1/7 and that of the wife’s selection is 1/5. What is that probability that only one of them will be selected
    Solution

  • Question 9
    4 / -1
    A bag contains 5 white, 7 red and 8 black balls. If four balls are drawn one by one without replacement, what is the probability that all are white
    Solution

  • Question 10
    4 / -1

    Solution

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