Distributions (RM) Flashcards
What is normal distribution?
What the mean, median and mode of a distribution are the same (or v similar)
What would a normal distribution look like on a graph?
Most scores occur around the middle reflecting that the mean, median and mode lie at the midpoint of the graph
Graph looks almost symmetrical
What is positively skewed distribution?
This is when most scores fall below where the mean appears on the graph
What does positively skewed distribution show?
That the mean is not a very representative score and it therefore shouldn’t be used as the sole measure of tendency
What is negatively skewed distribution?
This is when most score fell mainly above where the mean appears on the graph
What does negatively skewed distribution show?
That the mean is not a very representative score and it therefore shouldn’t be used as the sole measure of tendency