http://www.john-weber.com/

HOW TO MAKE A HISTOGRAM WITH TI83 CALCULATOR

Steps Key Sequence Screens
1. Enter data into list, L1    
2. Set up Stats Plotter 2nd then Y=
3. Select Plot1 1
4. Turn Plot1 On ENTER
5. Select histogram once then twice then ENTER
6. Select list L1 once
  If you see an A in the blinking cursor then press ALPHA
  press 2nd then 1
7. Graph ZOOM
  9 (for ZoomStat)
Steps Key Sequence Screens
8. Find the details TRACE
* P1:L1 means this is Plot1 of L1
* min=7 and max<8.5 means the first class is from 7 to 8.5 (but not including 8.5)
* n=7 means there are 7 data points in this class
* use the right arrow key to get the information of the other classes
Steps Key Sequence Screens
9. Change the class width WINDOW
  Change Xscl to new class width
10. Graph GRAPH then TRACE
NOTE: If you want a specific number of classes, say 12, then find the new class width by (max – min)/12.