Dot Plots and Stem Plots (VCE SSCE General Mathematics): Flashcards

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Dot Plots and Stem Plots
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Definition of a dot plot

Number line with dots above representing data values

Ideal number of data values for dot/stem plots

10 to 50 data values

Type of data dot plots work especially well for

Discrete numerical data

The 'stem' in a stem plot

The leading digit(s) of the number

The 'leaf' in a stem plot

The final digit of the number

Required element to explain stem plot values

A key (e.g., 12=121|2 = 12)

Arrangement of leaves on each stem

In ascending order

When to use split stems

When basic stem plot looks too cramped

Stem split into halves: leaf ranges

First: 0-4, Second: 5-9

Stem split into fifths: leaf groupings

0-1, 2-3, 4-5, 6-7, 8-9

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