Question
45% of all marathon runners also enjoy biking. If many samples of 60 marathon runners are taken and the proportion of those who also enjoy biking is calculated for each sample, what will be the approximate value of the mean of the sample proportions?
A. 0.30
B. 0.45
C. 0.60
D. 0.75
A. 0.30
B. 0.45
C. 0.60
D. 0.75
Answers
GPT 3.5
A. 0.30
The mean of the sample proportions is equal to the true population proportion, which is 0.45.
The mean of the sample proportions is equal to the true population proportion, which is 0.45.