Quiz: Quiz 10 Question 9 of 10 This question: 1 point(s) possible A salesperson's monthly expenses (in thousands of dollars) are exponentially distributed, with an average of 3.25 (thousand dollars). A. Give the probability density function for the expenses. B. Find the probability that the expenses are more than $6,000. A. The probability density function is f(x) = (Use integers or decimals for any numbers in the expression. Round to four decimal places as needed.) B. The probability that the expenses are more than $6,000 is (Round to four decimal places as needed.)