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9.03 Outliers

Interactive practice questions

Identify the outlier(s) in the data set $\left\{73,77,81,86,131\right\}${73,77,81,86,131}.

Easy
< 1min

The marks achieved by students in a class on a particular math exam were: $69,79,86,72,86,77,73,82,81,76,83,47,87,70,80,85$69,79,86,72,86,77,73,82,81,76,83,47,87,70,80,85.

Identify the outlier(s).

Easy
< 1min

The marks achieved by students in a class on a particular math exam were: $58,63,58,59,64,68,68,30,73,25,72,61,65,69,75,72$58,63,58,59,64,68,68,30,73,25,72,61,65,69,75,72.

Easy
< 1min

The graph shows the annual net profit (in millions) of a company over a several year period. Identify the year in which the annual net profit is an outlier.

Easy
< 1min
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Outcomes

2.1.5

recognise and identify outliers

2.1.9

investigate the effect of outliers on the mean and the median

2.1.11

use informal ways of describing spread, such as: spread out/dispersed, tightly packed, clusters, gaps, more/less dense regions, outliers

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