52. An insurance company’s monthly claim..-阿摩線上測驗
52. An insurance company’s monthly claims are modeled by a continuous, positive random
variable X, whose probability density function is proportional to for 0 < x<∞ .
Calculate the company’s expected monthly claims.
(A) 1/6
(B) 1/3
(C) 1/2
(D) 1
(E) 3