For example, even 300 really random people is enough to correctly assertain the distribution of population for some measurement (say, some personality feauture).
That’s the basis of all polls and what have you
(OK, on rereading, you did link to a WP article about CLT, so 30 it is!)
300 — I had in memory as a safe bet in a case of some skewed stuff like log-normal, exponential, etc.
For example, even 300 really random people is enough to correctly assertain the distribution of population for some measurement (say, some personality feauture).
That’s the basis of all polls and what have you