Question

watch the video and answer the question listed below. which of the following best explains what dr. vickers means by “theoretical variation of research results?” click here to watch the video. choose the correct answer below. a. the variation in the world around us. b. mens hair length varies so dr. vickers is referring the theoretical variation if he were to measure all mens hair. c. different samples produce different means so this is the variation between all the means. d. research results are always theoretical.

Explanation:

In statistics, theoretical variation of research results often refers to the differences in sample - statistics (such as means) due to sampling variability. Different samples from a population will produce different sample means, and the variation among these means is a form of theoretical variation. Option A is too general, option B is an over - specific example not representing the general concept, and option D is an incorrect statement as research results are not always theoretical.

Answer:

C. Different samples produce different means so this is the variation between all the means.