Interpreting Data, SM-Bank 016 MC

A single back-to-back stem-and-leaf plot would be an appropriate graphical tool to investigate the association between a car’s speed, in kilometres per hour, and the

driver’s age, in years.
car’s colour (white, red, grey, other).
average distance travelled, in kilometres.
driver’s sex (female, male).

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\(D\)

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\(\text{In a back-to-back stem-and-leaf plot, the numerical }\)

\(\text{speed data has to be plotted against categorical data}\)

\(\text{with two options.}\)

\(\therefore\ \text{Driver’s sex (M or F)}\)

\(\Rightarrow D\)