Displaying Grouped Data

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    20-Feb-2016
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Displaying Grouped Data. grouped. ungrouped. G rouped? When the data gets bunched together (normally because theres a bigger range which makes analysis easier). This is a frequency distribution table for grouped data. This is a frequency distribution table for grouped data. - PowerPoint PPT Presentation

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Displaying Grouped Data

Displaying Grouped Data

Grouped?

When the data gets bunched together (normally because theres a bigger range which makes analysis easier)

groupedungrouped

This is a frequency distribution table for grouped data

This is a frequency distribution table for grouped dataNote that the score column has changed to the class column nowThe class centre is the middle of the classClass Intervals

Its all about splitting up your data

Its all about splitting up your data

in a way to avoid bias or skew

Its all about splitting up your data

in a way to avoid bias or skew

this usually means

Its all about splitting up your data

in a way to avoid bias or skew

this usually means

picking your classes so that they have an equal number of scores in them (broken up evenly)

Histograms and PolygonsHistograms and Polygons

Exactly the same as normal histograms and polygons

Except the class centre goes on the bottom of the column

Whassup?