A loss under a liability policy is modeled by an exponential distribution. The insurance company will cover the amount of that loss in excess of a deductible of 2,000. The probability that the reimbursement is less than 6,000, given that the loss exceeds the deductible, is 0.50. Calculate the probability that the reimbursement is greater than 3,000 but less than 9,000, given that the loss exceeds the deductible.