For the following situation identify the sampling methodused.
The Florida Fish and Wildlife Conservation Commission manateemortality database website has information on cause of death andsize for all manatees killed off Florida waters.We decide to dividethe cause of death into watercraft, natural causes, stress, andother. Within each of these groups, a random sample of 25 manateesare selected.
| A. | systematic sampling |
| B. | stratified sampling |
| C. | simple random sampling |
| D. | cluster sampling |
