(i. If you are constructing a stem-and-leaf display, the "20" in 20.5 would be the stem. (ii) An advantage of a stem-and-leaf chart over a histogram is that the identity of each observation is not lost, and that it presents a picture of the distribution.
(iii) An advantage of a stem-and-leaf chart over a histogram is that it presents a picture of the distribution.
A) (i), (ii) and (iii) are all correct statements.
B) (i), (ii) and (iii) are all false statements.
C) (i) and, (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements but not (i).

Question

Quizplus · Accepted Answer

(i) is correct because in a stem-and-leaf display, the "stem" represents the leading digits (in this case, "20"), and the "leaf" represents the trailing digits (in this case, ".5"). (ii) is correct because a stem-and-leaf plot retains the actual data points, allowing for the identification of each observation while also showing the distribution. (iii) is essentially a subset of what is described in (ii), emphasizing the advantage of visualizing the distribution, which is also true for stem-and-leaf plots compared to histograms.

(I If You Are Constructing a Stem-And-Leaf Display, the "20