A stem-and-leaf plot is a display that organizes data to show its shape and distribution.In a stem-and-leaf plot each data value is split into a "stem" and a "leaf". The "leaf" is usually the last digit of the number and the other digits to the left of the "leaf" form the "stem". The number 123 would be split as: stem 12, leaf 3 . A stem-and-leaf plot does resemble a histogram turned sideways. The stem values could represent the intervals of a histogram, and the leaf values could represent the frequency for each interval. One advantage to the stem-and-leaf plot over the histogram is that the stem-and-leaf plot displays not only the frequency for each interval, but also displays all of the individual values within that interval.
No comments:
Post a Comment