Annual income: The mean annual income for people in a certain city (in thousands of dollars) is 41, with a standard deviation of 29. A pollster draws a sample of 91 people to interview. Part: 0 / 5 Part 1 of 5 (a) What is the probability that the sample mean income is less than 36? Round the answer to at least four decimal places. The probability that the sample mean income is less than 36 is X S