applied maths chapter 3

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9 Terms

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outliers are…
greater/less than 1.5 IQRs below the mean
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removing anomalies from the data is called…
cleaning the data
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box plots have lines for…

and crosses for…
lines for LQ, median, UQ, highest and lowest values that aren’t outliers

crosses for outliers
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when comparing data, you should…
use a measure of location and a measure of spread, as well as an interpretation in the context of the question
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features of a cumulative frequency table
join the plots with a smooth curve

plot each point using the upper class boundary
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the vertical scale on a histogram shows
frequency density
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frequency density =
frequency/class width
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how to make a frequency polygon
join the middle of the top of each bar - don’t forget anything with a frequency of 0
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