Compute the expected number of cars arriving in Problem 13-15 using the expected value formula. Compare this with the results obtained in the simulation.
In Problem 13-15 The number of cars arriving per hour at Lundberg’s Car Wash during the past 200 hours of operation is observed to be the following:
Number of Cars Arriving Frequency
3 or fewer ............. 0
4 .................. 20
5 .................. 30
6 .................. 50
7 .................. 60
8 .................. 40
9 or more .............. 0
Total ............... 200