1 Ralph Billett is the manager of a real estate agency. He now wishes to develop a forecast of the number of houses that will be sold by the agency over the next year. The agency's quarter-by- quarter sales figures over the last three years are shown below. Quarter Year 1 Year 2 Year 3 1 30 59 71 2 59 28 45 3 22 28 71 4 34 57 65 4. Use Weighted Moving Average with 0.3,0.35,0.35 probabilities, respectively and find the following forecast: a. Year 1 Quarter 4 b. Year 2 Quarter 2 c. Year 3 Quarter 1 d. Year 3 Quarter 3