In a ________ , the population is divided into mutually exclusive groups and then random samples are drawn from each group.
a. convenience sample
b. snowball sample
c. stratified sample
d. judgment sample
Answer: c. stratified sample
In a ________ , the population is divided into mutually exclusive groups and then random samples are drawn from each group.
a. convenience sample
b. snowball sample
c. stratified sample
d. judgment sample
Answer: c. stratified sample