Question

question 6
determine whether the value is a parameter or statistic:
a) a sample of college students reveals 60% took calculus. select an answer
b) in a weight loss research study the sample of 50 men lost an average of 2.5 pounds. select an answer
c) using consumer reports, a random sample of new cars gave an average of mpg 30.5. select an answer
d) facebook recently tested all of their servers and found that 99% were performing as intended select an answer

Explanation:

Step1: Recall definitions

A parameter is a characteristic of a population, while a statistic is a characteristic of a sample.

Step2: Analyze part a

The 60% is from a sample of college - students. So it is a statistic.

Step3: Analyze part b

The average of 2.5 pounds is from a sample of 50 men in a weight - loss study. So it is a statistic.

Step4: Analyze part c

The average mpg of 30.5 is from a random sample of new cars. So it is a statistic.

Step5: Analyze part d

Facebook tested all of their servers (the entire population of their servers). The 99% is a characteristic of the population, so it is a parameter.

Answer:

a) Statistic
b) Statistic
c) Statistic
d) Parameter