Government data show that 9% of the American population are at least 75 years of age. To test a random-digit dialing device, you use the device to call randomly chosen residential telephones in your county. Of the 300 members of the households contacted, 3% are 75 years or older.
(a) Is each of the boldface numbers a parameter or a statistic?
O 9%: parameter, 3%: parameter
O 9%: parameter, 3%: statistic
O 9%: statistic, 3%: statistic
O 9%: statistic, 3%: parameter