Question

Scores on tests of individual differences, including intelligence test scores, often follow a pattern in which most scores are in the average range, with fewer scores in the extremely high or extremely low range. What is this pattern of distribution of scores called?A) The normal distributionB) The reliability distributionC) The standered distributionD) The variability distribution

Answer 1

Answer:

A

Explanation:

Normal distribution also called Gaussian distribution is a probability distribution of scores, stocks and others known collectively as data, where several of the data are close to the average score and few are either extremely high or low. This phenomenon is describe as the distribution is symmetrical about the mean with few  data at both far end from the mean.

Normal distribution has a bell curve shape with 68% of the data within ± 1 standard deviation from the mean, 95% of the data within ± 2 standard deviation of the mean and 99.7% within ± 3 standard deviation of the mean.