Question

According to the DuPont 2007 Global Automotive Color Popularity Report, 19% of all cars manufactured in 2007 were white. In a random sample of 100 cars parked in long-term parking at Philadelphia International Airport, 22% of the cars were white.
Which of the following statements is true?

(a) 19% and 22% are parameters, 100 is a statistic.
(b) 19% is a parameter, 22% is a statistic.
(c) 19% is a statistic, 22% is a parameter.
(d) 19% and 22% are statistics, 100 is neither a parameter nor a statistic.
(e) 19%, 22%, and 100 are all statistics.

Answer 1

Answer:

(b) 19% is a parameter, 22% is a statistic.

Step-by-step explanation:

-A parameter is defined as characteristic of a population under study.

In this case , the population is all cars manufactured and the characteristic of whiteness is exhibited by 19% of them.

#A statistic is a characteristic  of sample.

-In this case the sample size is 100 and the statistic is 22% of them are white.

=>A statistic is usually taken or used as a representation of the entire population.