Rob Stewart is the director of food service at the 600-bed Memorial Hospital. Rob carefully maintains cumulative records of individual entrees served in the past when these menu items were offered, and these are listed in the Number Served column below. Today, Rob is preparing kitchen production orders for tomorrows dinner meal where he will offer the same four menu items listed. He estimates that 500 dinners will be served. Help Rob forecast the number of each entree his patients will likely request when they make their menu selections for tomorrows dinner. What other information/data could Rob look to to help understand how to properly prepare for this dinner.