Question | Answer |
Bar Graph | A graphical representation of a table of data in which the bar length indicates its frequency. Used to make comparision. Can be horizontal or vertical. Can be double or stacked. |
Categorical Data | Data that uses words that represent possible responses within a given category. Examples: favorite colors |
Circle Graph | A graph in the shape of a circle. It is used to compare parts to the whole. Also called a pie chart. |
Data | The facts or numbers that describe something. |
Frequency | The number of times an item, number, or event occurs in a set of data. |
Frequency Distribution | The organization of raw data in table form with classes and frequencies. |
Histogram | A way of displaying numeric data using horizontal or vertical bars so that the height or the length of the bar indicates the frequency. |
Line Graph | A graph that displays data using points joined by line segments. |
Line Plot (Dot Plot) | A graph showing the frequency of data using a number line. |
Mean | The sum of the numbers in a set of data divided by the number of pieces of data, sometimes called an "average." |
Measures of Central Tendency | Numerical values used to describe the overall clustering of data in a set. This term includes mean, median and mode. |
Mediam | The numerical value that marks the middle of an ordered set of data. |
Mode | The category or numerical value that occurs most often. |
Numerical Data | Values that are numbers such as counts, measurements and ratings. Example: number of children in failies |
Range | The difference between the least value and the greatest value in a distribution. |
Stem-and-Leaf Plot | A quick way to picture the shape of a distribution while including the actual numerical values in the graph. A key must be included. |