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Arithmetic Aptitude :: Probability

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Probability - General Questions 1
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Probability - [Data efficiency-2]
Probability - [data sufficiency 1]
  1.  The successive trials are with replacement in

    2. A.

    Geometric distribution
    B.

    Binomial distribution
    C.

    Hypergeometric distribution
    D.

    None of above

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  2.  Hypergeometric distribution has parameters

    3. A.

    1
    B.

    2
    C.

    3
    D.

    4

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  3.  A random variable X has binomial distribution with n = 10 and p = 0.3 then variance of X is

    4. A.

    1
    B.

    1.1
    C.

    2.1
    D.

    3.1

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  4.  In a binomial probability distribution it is impossible to find

    5. A.

    P(X = 0)
    B.

    P(X < 0)
    C.

    P(X > 0)
    D.

    P(0 ≤ X ≤ n)

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  5.  In which distribution successive trials are without replacement

    6. A.

    Poisson distribution
    B.

    Binomial distribution
    C.

    Geometric distribution
    D.

    Hypergeometric distribution

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  6.  A fair coin is tossed four times, the probability of getting four heads is

    7. A.

    1/4
    B.

    1/8
    C.

    1/16
    D.

    1/32

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  7.  Which of the following is not the property of binomial distribution

    8. A.

    n is fixed
    B.

    has two outcomes
    C.

    Trials are independent
    D.

    Probability of success varies from trial to trial

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  8.  Binomial distribution is symmetrical when

    9. A.

    p = q
    B.

    p > q
    C.

    p < q
    D.

    np > npq

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  9.  In hypergeometric distribution, the trials are

    10. A.

    Dependent
    B.

    Independent
    C.

    Collectively Exhaustive
    D.

    None of these

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  10.  If in a binomial distribution n = 1 then E(X) is

    11. A.

    q
    B.

    p
    C.

    0
    D.

    1

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