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Arithmetic Aptitude :: Probability

Probability - Important Formulas
Probability - General Questions
Probability - General Questions 1
Probability - Probability
Probability - [Data efficiency-2]
Probability - [data sufficiency 1]
  1.  The mean, median and mode for binomial distribution will be equal when

    2. A.

    p =0.5
    B.

    p< 0.5
    C.

    p> 0.5
    D.

    p= 1

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  2.  The mean of hypergeometric distribution is

    3. A.

    nk/N
    B.

    n-k/N
    C.

    n+k/N
    D.

    nn/N

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  3.  Probability of occurrence of an event lies between

    4. A.

    0 and 1
    B.

    -1 and 0
    C.

    -1 and 1
    D.

    exactly 1

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  4.  For a probability density function (pdf), the probability of a single point is

    5. A.

    0
    B.

    1
    C.

    2
    D.

    Constant

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  5.  For a random variable X, E(X) is

    6. A.

    Harmonic Mean (HM)
    B.

    Geometric Mean (GM)
    C.

    Arithmetic Mean (AM)
    D.

    None of these

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  6.  If C is non-random variable, the E(C) is

    7. A.

    o
    B.

    1
    C.

    2
    D.

    C

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  7.  The distribution function F(X) is represented by

    8. A.

    P(X)
    B.

    P(X=x)
    C.

    P(X>x)
    D.

    P(X≤x)

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  8.  A discrete probability distribution may be represented by

    9. A.

    A table
    B.

    A graph
    C.

    A mathematical Equation
    D.

    All of these

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  9.  Total Area under the curve in probability of density function is

    10. A.

    0
    B.

    -1
    C.

    1
    D.

    Infinity

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  10.  Probability distribution of a random variable is also known as

    11. A.

    Probability
    B.

    Probability Function
    C.

    Distribution Function
    D.

    Probability Distribution

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