■Let X be a random variable with the distributionwhere a ＞ 0 and β ＞ 0. If Y = 1/X, the probability

問題詳情

■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)__ , andE(Yr)= (8) , where r is a positive integer.
【題組】(7)