Which describes a parameter of a population? a) 34% of machinist have a college degree b) 22% of city residents have been to the new museum c) the average systolic blood pressure of all u. s. men aged 40-59 eliminate d) 58% of students at jacksonville high school have been to a baseball game?

A parameter is any summary number, such as the average or percentage, that describes the entire population, for example the population mean and the population proportion p are two different population parameters.                          In this case, i believe the answer is C. The average systolic blood pressure of all U.S men aged 40-59 eliminate.