If numerous large random samples or repetitions of the same size are taken from a population, the frequency curve made from proportions from the various samples will have what approximate shape?
A)A bar graph with two bars, one for the proportion having the trait of interest, and the other for the proportion not having the trait of interest.
B)A bell-shape.
C)A flat shape; each outcome should be equally likely.
D)Unknown; it can change every time.

Question

Quizplus · Accepted Answer

According to the central limit theorem, the frequency curve made from proportions from numerous large random samples taken from a population will have a bell-shaped curve, regardless of the shape of the population itself. This is because the means from these samples will follow a normal distribution.

If Numerous Large Random Samples or Repetitions of the Same