Answer
a) 478, is a statistic.
18-29 is a parameter.
66% is a statistic.
b) 514 is a parameter.
Work Step by Step
a) The sample size, 478, is a statistic because it represents the whole population.
The age range 18-29 is a parameter because it is a characteristic of a population.
66% is a statistic because it is an estimate that is drawn from the sample. So it is a characteristic of a sample.
b) 514 is a parameter because it is based on the entire population.