Answer:The result of simple forecast combination is 354
Step-by-step explanation:
Simple forecast combination = (forecast of Mary + forecast of Susan + forecast of Sarah) / 3
= (315 + 516 + 196) / 3
= 354
Simple forecast model is a naive model where the future sales can be predicted based on the past experiences. Here the three partners have different forecast so based on the average of their forecast the sales for this year's red hoody lifeguard can be predicted as 354.