In a normal distribution of scores,which of the following is true?
A) About 5 percent of the scores are more than two standard deviations from the mean.
B) The mean score is always 0.
C) Most scores are located in the two "tails" at either end of the distribution.
D) The standard deviation indicates the arithmetic average score.

Question

Quizplus · Accepted Answer

In a normal distribution, about 5 percent of the scores are located more than two standard deviations from the mean. The mean is not always 0, and most scores are not located in the tails at either end of the distribution. The standard deviation indicates the average amount of variability in the scores, not the arithmetic average score.

In a Normal Distribution of Scores,which of the Following Is