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Four defective oranges are accidentally ...

Four defective oranges are accidentally mixed with sixteen good ones . Two oranges are drawn at random from the mixed lot. If the random variable X denotes the number of defective oranges then find the values of X and number of points in its iverse image.

Answer

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Knowledge Check

  • Suppose that two cards are drawn at random from a deck of cards. Let X be the number of aces obtained. then the value of E(X) is

    A
    `(37)/(221)`
    B
    `(5)/(13)`
    C
    `(1)/(13)`
    D
    `(2)/(13)`

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