The salespeople at Owl Realty sell up to 9 houses per month. The probability distribution of a salesperson selling (n) houses in a month is as follows: Sales Probability 0 .05 1 .10 2 .15 3 .20 4 .15 5 6 .10 7 .05 8 .05 9 .05 What are the expected value and the standard deviation for the number houses sold by the salespeople per month, respectively