you want to estimate number of students that bring their gown lunch to school every day. Which of the following is the best sample for this situation?
a. 80 students selected at random during lunch
b. 50 female students selected at random
c. all members of the math club
d. 45 first year students selected at random
A. 80 students selected at random during lunch
This sample would provide the best representation of the overall student population and their lunch habits. Selecting students at random during lunch can give a more accurate estimate of the number of students who bring their own lunch to school every day.
a coffee shop owner is interested in determining what people think about the new coffee flavor. Which of the following is the population in this situation?
a. all customers who bought the new coffee.
b. the first 50 customers who bought the new coffee
c. 100 random customers
d. all customers who did not buy the new coffee
A. All customers who bought the new coffee.
The population in this situation would be all customers who have bought the new coffee flavor, as they represent the group of interest for determining their opinion on the new coffee flavor.