STAT 210 Lecture Notes - Lecture 2: Skewness, Frequency Distribution, Central Tendency
Document Summary
A frequency s a number of participants or cases. N , meaning number of participants, is also used to stand for frequency. A percentage indicates the number per hundred who have a certain characteristic. A proportion is part of one (1). Percentages are usually preferred to proportions in all types of reporting. When reporting percentages, it is a good idea to also report the underlying frequencies because percentages alone can sometimes be misleading or fail to provide sufficient information. The shape of a distribution of a set of scores can be seen by examining a frequency distribution, which is a table that shows how many participants have each score. The shape of a distribution is even clearer when examining a frequency polygon, which is a figure that shows how many participants have each score. When there are many participants, the shape of a polygon becomes smoother and is referred to as a curve.
