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6th math gather data

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.
Created by: mcrippen