A New York Times focus group with Trump-supporting voters between the ages of 20 and 25 mostly found glum outlooks on the economy and world affairs — and an overall sense that the system, even under the man they voted for, just isn't working.The focus group included 10 people, including seven Republ...
Always been curious how effective focus groups are and what sample sizes would be considered representive of the general population.
This is regularly answered by statisticians