5 ms·
9 people gets you a significant portion of the confidence that a larger survey provides.
by beckingz 5y ago
9 people gets you a significant portion of the confidence that a larger survey provides.
- wolverine876 5y ago? It depends on the size of the population. I don't believe surveying 9 people will tell you anything about public opinion among the ~325 million Americans. And again, it must be representative. Should I ask 9 friends of mine?
- tomc1985 5y agoNo, unless you are trying to draw conclusions limited to your friends. Similarly, two flats in 10 years might be significant for you and your driving, but not tires as a whole.