Question: Let X be a standard normal random variable (i. e., X ~ N ( 0,1)). Find the PDF of Y= |X|. If the transformation is

Let X be a standard normal random variable (i. e., X ~ N ( 0,1)). Find the PDF of Y= |X|.
If the transformation is
Let X be a standard normal random variable (i. e.,

0, s0

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