Representations of data

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6 Terms

1
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What is an outlier? (2)

  • 1.5 x IQR above/below Q1 and Q3

  • 2 standard deviations above/below mean


2
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How to represent an outlier on a box plot

X

3
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What do the whiskers of the box plot extend to?

Min and max which are not outliers

4
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Equation linking frequency, frequency density and class width

Frequency = frequency density x class width

5
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What is a bar chart used to represent?

Discrete data

6
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What is a histogram used to represent?

Continuous data