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Math Help - Normal Distribution

  1. #1
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    Normal Distribution

    Y is a rv of 'normal distribution' with mean -2 and variance 25.

    a) Find the probability that Y>1, given that Y>0.
    b) Find the EY, given that Y>0.

    Hint: for b), first derive the cdf of the rv given by X=(Y l Y>0)
    The hint did not help me much..
    Help me out please.
    :S
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  2. #2
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    Quote Originally Posted by zangbangapda View Post
    Y is a rv with mean -2 and variance 25.

    a) Find the probability that Y>1, given that Y>0.
    b) Find the EY, given that Y>0.

    Hint: for b), first derive the cdf of the rv given by X=(Y l Y>0)
    The hint did not help me much..
    Help me out please.
    :S
    Not much can be done without knowing the distribution of Y.
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