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data

pieces of information that are often numerical. Often shown in a table

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graph

a more visual way to display data

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bar graph

used to compare categories of data

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scale

written on the vertical (y) axis, it includes the least and greatest number

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vertical axis

(y) axis - the axis on which the scale and interval are shown in a bar or line graph

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interval

the difference between successive values on a scale.

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horizontal axis

the axis on which the categories or values are shown in a bar and line graph.

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frequency

the number of times an item occurs

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line graph

used to shown how a set of data changes over a period of time.

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stem and leaf plot

data are ordered from least to greatest and organized by place values

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stems

the greatest place value common to all the data that is written to the left of the line in a stem and leaf plot

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leaves

the units digit written to the right of the vertical line in a stem and leaf plot

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key

sample data point used to explain the stems and leaves in a stem and leaf plot

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line plot

a diagram that shows the frequency of data on a number line

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