Pabst Dental Supplies is evaluating the introduction of a new product. The possible levels of unit sales and the probabilities of occurrence are given. Sales in Units Possible Market Reaction Low response Moderate response Probabilities 10 e.30 e.20 0.30 e.20 25 High response Very high response 40 65 a. What is the expected value of unit sales for the new product? es Expected value b. What is the standard deviation of unit sales? (Round the final answer to 2 decimal places.) Standard deviation