g A man purchases a life insurance policy on his 40th birthday. The policy will pay 5000 if he dies before his 50th birthday and will pay 0 otherwise. The length of lifetime, in years from birth, of a male born the same year as the insured has the cumulative distribution function 0, 0 ( ) 1 1.1 1 exp , 0. 1000 t t F t t  ≤  =    −  − >      Calculate the expected payment under this policy.