A manager is trying to decide whether to build a small, medium, or large facility. Demand can be low, average, or high, with the estimated probabilities being , , and , respectively. A small facility is expected to earn an after-tax net present value of just if demand is low. If demand is average, the small facility is expected to earn ; it can be increased to medium size to earn a net present value of. If demand is high, the small facility is expected to earn and can be expanded to medium size to earn or to large size to earn