Distributions

Question 1

Define normal distribution

Answer 1

When the mean, median and mode of a distribution are the same or very similar. The graph will look almost symmetrical where the mean, median and mode lie at the midpoint of the graph.

Question 2

Define positively skewed distribution

Answer 2

This is when most scores fall below where the mean appears in the graph. This shows that the mean is not a very representative score in this instance and it should not be used as the sole measure of tendency.

Question 3

Define negatively skewed distribution

Answer 3

This is when most scores fall mainly above where the mean appears on the graph.This shows that the mean is not a very representative score in this instance and it should not be used as the sole measure of tendency.