Answer
a. Discrete
b. Ratio
c. Stratified
d. Cluster
e. The mailed responses would be a
voluntary response sample, so those
with strong opinions are more likely
to respond. It is very possible that
the results do not reflect the true
opinions of the population of all
customers.
Work Step by Step
a. Discrete
b. Ratio
c. Stratified
d. Cluster
e. The mailed responses would be a
voluntary response sample, so those
with strong opinions are more likely
to respond. It is very possible that
the results do not reflect the true
opinions of the population of all
customers.