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 92% of the years yequals$0, but in 8% of the years yequals$4 comma 000. the mean treatment expenditure for a minor fracture in any year is $ nothing, and the standard deviation of the treatment expenditure for a minor fracture in any year is $ nothing. (round your answers to two decimal places.)