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• The box and whisker plot is the visual representation of the $$5$$ number summary, see below.
• For example, the five number summary of the data $$(50$$, $$55$$, $$55$$, $$55$$, $$62$$, $$65$$, $$78$$, $$99)$$ is: $$50$$, $$55$$, $$58.5$$, $$71.5$$, $$99$$.
• Therefore the minimum is $$50$$, the first quartile is $$55$$, the median is $$58.5$$, the third quartile is $$71.5$$ and the maximum is $$99$$.