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Data and Graphs

Vocabulary for Data and Graphs

survey A method of gathering data by asking people questions
tally A way of counting by making a mark for each item counted.
line plot A graph that uses X's above a number line to show data.
median The middle number in a group of numbers arranged in numerical order.
mode The number or numbers that occur most often in a set of data
range The difference between the greatest and the least numbers in a set of numbers
pictograph A graph that shows data by using symbols or pictures
key Tells how many items each symbol stands for.
bar graph A graph that shows data by using bars of different lengths.
scale Marks that are equally spaced along a side of a graph.
ordered pair A pair of numbers that gives the location of a point on a map or grid.
line graph A graph that uses a line to show how something changes over time.
Created by: sdobson