Monday, 11 July 2011

boxplots NLVM

the 'Old Faithful' geyser in Yellowstone Park has data for the intervals between eruptions that are sort of bi-modal

boxplots NLVM

enables a comparison to be made between a boxplot and the shape of a bar chart (of grouped data)

several data sets are provided - the 'Old Faithful' data set having 112 points

the group sizes can be changed with a slider

students can decide how many groups to have - to provide an overview of the data shape

students can enter their own data and compare a boxplot with a bar chart
they can also see how their data looks with easily changed class intervals (by means of a slider)

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