OCR H240/02 2023 June — Question 8

Exam BoardOCR
ModuleH240/02 (Pure Mathematics and Statistics)
Year2023
SessionJune
TopicData representation
TypeOutliers from box plot or summary statistics
8 The stem-and-leaf diagram shows the heights, in centimetres, of 15 plants. \(|\)
\(\mid\)02
\(\mid\)10
\(\mid\)24
\(\mid\)30249
\(\mid\)412479
\(\mid\)537
\(\mid\)62
Key: | 2 | 5 means 25 cm .
  1. Draw a box-and-whisker plot to illustrate the data. A statistician intends to analyse the data, but wants to ignore any outliers before doing so.
  2. Discuss briefly whether there are any heights in the diagram which the statistician should ignore.
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