Graphs

Line Plot, Stem and Leaf, Box and Whisker, Scatter Plots

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Line Plots

Provides easy way to display data, usually used with ONE group of data, X's are placed over the number to show how many occurances have happened.

Stem and Leaf Plot

Used to arrange data from least to greatest. 2 columns, Right side is leaf, --Left side is stem.
ex. 2|3,4,5 =23, 24, 25

Box and Whisker Plot

displays the distribution of data items along a number line

______|_____|_____|______
LE LQ M UQ UE

Quartiles

divide the data into four equal parts --find the median

Lower Quartile

the median of the lower half


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