Dene X to be the time to wait for placing an order at a drive through window and assume X follows a continuous uniform distribution between D and l 1 minutes. Include units as appropriate. a} What is the height of'lhe probabilityr density function?I b} Find the mean Wait time for placing an order at the drive through window. c} Find the probabilityr that the time to Wait for placing an order is betWeen 5 and 7 minutes. d} About 75% of the customers are expected to wait at mostx minutes. Find x