Shortly after metric units of length were officially introduced in Australia, each of a group of 44 students was asked to guess, to the nearest meter, the width of the lecture hall in which they were sitting. Another group of 69 students in the same room were asked to guess the width in feet, to the nearest foot. (The true width of the hall was 13.1 m or 43.0 ft).

The data contains the students’ guesses. Construct suitable graphical displays for both sets of guesses with the aim of answering the question

“which set of guesses is most accurate?”