Answer:
Snowball sampling
Explanation:
Snowball sampling may be defined as a type of non probability sampling technique. In this sampling the existing study recruits the future study and sample grows like rolling.
Dr. Chandler has prepared the report of the people abducted by UFOs and asked to share the details of the other people as well. Here, the present study depends on the future study as she asks the existing people to refer the more people.
Thus, the answer is snowball sampling.
<span>The appointment time & assiociated revenue is perishable, & the doctor may lose revenue</span>
