Chapter 2 Statistics and Graphs vocabulary

14 terms by kmgraham

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data

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

graph

a more visual way to display data

bar graph

used to compare categories of data

scale

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

vertical axis

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

interval

the difference between successive values on a scale.

horizontal axis

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

frequency

the number of times an item occurs

line graph

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

stem and leaf plot

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

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

leaves

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

key

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

line plot

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

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