In the first scenario, the I-20 highway was jammed for 3 days out of 20 days, which means a probability of 0.15 (3 / 20). In other words, the trip on any three days of a month would extend to 45 minutes instead of planned 25 minutes as both Edith and Mathew are not aware of state of highway ahead of time. Assuming that this month is a good representation of all months ahead, Edith and Mathew should continue traveling at I-20 highway because they will save 10 minutes per day for 17 workdays and will face delay of Continue reading...