The management of the Cambridge Company has projected the sales of its products (in millions of dollars) for the upcoming year, with the associated...

The management of the Cambridge Company has projected the sales of its products (in millions of dollars) for the upcoming year, with the associated probabilities shown in the following table: Sales 20 22 24 26 28 30 Probability 0.05 0.10 0.35 0.30 0.15 0.05 a. What does the management expect the sales to be next year? b. Compute the variance. c. Compute the standard deviation.