Question

For a discrete random variable, the probability of the random variable takes a value within a...

  1. For a discrete random variable, the probability of the random variable takes a value within a very small interval must be

    A.

    zero.
    B.

    very small.
    C.

    close to 1.
    D.

    none of the above.

QUESTION 10

  1. The area under the density function in a certain interval of a continuous random variable represents

    A.

    randomness.
    B.

    the area of one rectangle.
    C.

    the probability of the interval.
    D.

    none of the above.

QUESTION 11

  1. For any random variable, X, E(X) =

    A.

    X.
    B.

    0.
    C.

    some fixed number.
    D.

    None of the above.
Math   Statistics-And-Probability   
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