ection Question 19, Concept Exercise 2.6.1 Part In any year, a person can suffer from a minor fracture. From year to year, the number of people seeking treatment for such fractures is random. Let Y denote the treatment expenditure for a minor fracture in any given year. Suppose that in 91% of the years Y= $0, but in 9% of the years Y = $4,000. The mean treatment expenditure for a minor fracture in any year is $ 360, and the standard deviation of the treatment expenditure for a minor fracture in any year is $ 1144.73. (Round your answers to two decimal places.) Consider a group of 324 people whose lives, homes, and occupations are sufficiently dispersed so that, in any year, the treatment expenditure for a minor fracture of different persons can be viewed as independently distributed random variables. Let Y denote the average treatment expenditure for a minor fracture of these 324 persons in a year. The expected value of the average treatment expenditure for a minor fracture, E(Y), in any year is $ standard deviation of the average treatment expenditure for a minor fracture in any year is $. (Round your answers to two decimal places.) and the

Compute the following probabilities: If Y is distributed N(2,4),Pr(Y6)=0.9772. (Round your response to four decimal places.) If Y is distributed N(3,4),Pr(Y>3)=.5000. (Round your response to four decimal places.) If Y is distributed N(7,9),Pr(12Y6)=. (Round your response to four decimal places.)