LESSON 18 Flashcards
used by researchers as the
most common measure of central tendency. ___ defines the location of the peak, and most of the data
points/values are clustered around the ___.
MEAN
measures the dispersion of the data points relative to the mean. It determines how far away from the mean the data are positioned and represents the distance between the mean and the observations.
STANDARD DEVIATION
A normal distribution comes with a perfectly symmetrical shape.
IT IS SYMMETRIC
The middle point of a normal distribution is the point with the maximum frequency, which means that is possesses the most observation of the variable.
THE MEAN, MEDIAN, MODE ARE EQUAL
In normally distributed data, there is a constant proportion of distance lying under the curve between the mean and specific number of standard deviations from the
68.26% mean.
THE EMPIRICAL RULE