Question

Describe the population and , if relevant, the sample. For each number presented, determine if it is a parameter, statistic, or something else and explain why. (a) The average height of all NBA players in the 2017-2018 season was 79 inches. (b) A June 2018 Gallup poll of 1520 national adults, aged 18 and older, shows that 47% are "extremely proud to be American," a record low in the 18 - year history of this poll.

Answer 1

Parameter: A characteristic that describes a population is called a parameter. For example population mean ,population standard deviation

Statistics :A characteristic that describes a sample is called a statistic.

(A) In this case the average height of all NBA players 79 inches is population mean  because it talks about entire NBA players hence it is parameter.

(B) In case of Gallup poll of 1520 national adults, aged 18 and older, shows that 47% are "extremely proud to be American," a record low in the 18 - year history of this poll suggest that sample propotion is 47% as out of total population 1520(sample) people have been asked this question hence it it is Statistic.