Let the random variable be the number of days that a certain patient needs to be in the hospital.
Suppose has the probability mass function
() = 5 −
10 , = 1, 2, 3, 4
If the patient is to receive $200 from an insurance company for each of the first two days in the hospital
and $100 for each day after the first two days, what is the expected payment for the hospitalization?