題組內容
■Let X be a random variable with the distribution
where a ＞ 0 and β ＞ 0. If Y = 1/X, the probability density function of Y is__ (7)__ , and
E(Yr)= (8) , where r is a positive integer.
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■Let X be a random variable with the distribution
where a ＞ 0 and β ＞ 0. If Y = 1/X, the probability density function of Y is__ (7)__ , and
E(Yr)= (8) , where r is a positive integer.