<P> A stem - and - leaf display or stem - and - leaf plot is a device for presenting quantitative data in a graphical format , similar to a histogram , to assist in visualizing the shape of a distribution . They evolved from Arthur Bowley 's work in the early 1900s , and are useful tools in exploratory data analysis . Stemplots became more commonly used in the 1980s after the publication of John Tukey 's book on exploratory data analysis in 1977 . The popularity during those years is attributable to their use of monospaced ( typewriter ) typestyles that allowed computer technology of the time to easily produce the graphics . Modern computers ' superior graphic capabilities have meant these techniques are less often used . </P>
<P> A stem - and - leaf display or stem - and - leaf plot is a device for presenting quantitative data in a graphical format , similar to a histogram , to assist in visualizing the shape of a distribution . They evolved from Arthur Bowley 's work in the early 1900s , and are useful tools in exploratory data analysis . Stemplots became more commonly used in the 1980s after the publication of John Tukey 's book on exploratory data analysis in 1977 . The popularity during those years is attributable to their use of monospaced ( typewriter ) typestyles that allowed computer technology of the time to easily produce the graphics . Modern computers ' superior graphic capabilities have meant these techniques are less often used . </P>
when is a stem and leaf plot used
when is a stem and leaf plot used
for presenting quantitative data in a graphical format to assist in visualizing the shape of a distribution in exploratory data analysis
for presenting quantitative data in a graphical format to assist in visualizing the shape of a distribution in exploratory data analysis