The National Football League obtains a sample of its players by randomly choosing 15 players from each team.
A) Yes B) No
Identify whether the sample is a simple random sample.
Question 2
A population of scores is normally distributed with a mean of 100 and a standard deviation of 20. Approximately percent of the scores fall in the interval between 80 and 100.
a. 14
b. 34
c. 68
d. 84