Which of the following is the definition of "standard deviation"?
A)A statistical procedure that allows researchers to draw implications about how statistically meaningful a study's results are.
B)A commonly used measure of variability that indicates the average difference between scores in a distribution and their mean.
C)An average that is calculated by adding up a set of quantities and dividing the sum by the total number of quantities in the set.
D)A statistical test that assesses how likely it is that a study's results occurred merely by chance so that the researcher knows that the probability that the difference is "real" is overwhelming.

Question

Quizplus · Accepted Answer

Standard deviation is a measure of the spread or variability of a set of data. It indicates the average difference between each score in a distribution and the mean of the distribution. It tells us how tightly or loosely clustered a group of data points is around the mean.

Which of the Following Is the Definition of "Standard Deviation