Question

Indicate which of the following is a parameter (P), and which is a statistic (S):

a) population’s count

b) sample’s average

c) a mean obtained from the U.S. census

d) an obtained from sampling 2,000 American adults using random digit dialing

e) standard deviation of ½ of the given data

f) average number of defects after all the computers have being tested

Answer 1

As we know parameter describe the population and statistics describes the sample

Based on this answers are as below

a. Population's count - As population is used, it is parameter

b. Sample's average - As sample is used, it is statistics

c. U.S census means population- As population is used, it is parameter

d. Sample of 2000 American adults are used so we have sample - As sample is used, it is statistics

e. Standard deviation of half data means sample - As sample is used, it is statistics

f. As all the computers are tested, it is population - As population is used, it is parameter