In: Statistics and Probability
For a certain health insurance policy, losses are uniformly distributed on the interval [0, b]. The policy has a deductible of 180 and the expected value of the un-reimbursed portion of a loss is 144.
Calculate b. (A) 236 (B) 288 (C) 388 (D) 450 (E) 468
expected value of the un-reimbursed portion of a loss = xf(x) dx+180*- f(x)dx =(x/b) dx +180* (1/b) dx
=x2/(2b) |1800 +(x/b) |b180=16200/b +(180-32400/b) =180-16200/b =144
16200/b =36
b=16200/36=450
option D is correct