Which statement about bias is true?
I. Bias results from random variation and will always be present.
II. Bias results from a sampling method likely to produce samples that do not represent the
Population.
III. Bias is usually reduced when sample size is larger.
A) II only
B) I only
C) III only
D) II and III only
E) I and III only

Question

Quizplus · Accepted Answer

Bias results from a sampling method likely to produce samples that do not represent the population, not from random variation. Increasing sample size does not reduce bias; it reduces random error.

Which Statement About Bias Is True