1. Two servers in a restaurant forecast how many guests will come for dinner in the next 4 days. The server A forecasts the number of guests to be 23 for day 1,28 for day 2,31 for day 3 , and 24 for day 4 . The server B forecasts 21,28,31, and 26 for four respective days. The actual attendance turns out to be 26,25,28, and 27 . Who is the better forecaster and explain why? (20 points)