put your data into a list, say L1
go to STAT PLOT, which is above the y= button
arrow down on the plot options and select the box plot
turn this plot ON
hit the graph button
if you don’t see the box plot go to the ZOOM options and select 9: ZoomStat
this was done on a TI 83, the older version of the 84.
here is a good resource for the 84:
Stem And Leaf Plot Creator
i think make the list of numbers by pressing stat then edit and then press second stat plot and one of them is stem plot…i think
is this warren sadler?