Texas Instruments TI-84 Plus CE Getting Started page 49

To find the two variable statistics for L1 and L2:
Press ....
1.
Press ~ to highlight CALC .
2.
Press † until you highlight 2:2-Var Stats , then Í.
3.
Press † until you highlight Calculate , then Í.
4.
▶
The screen will display the variable statistics.
Most common probability and statistics commands will have a wizard
Note:
to prompt for syntax (values). The built-in Catalog Help is also available by
pressing the à key on most menu items. This opens an editor to help you
fill in the syntax (values) needed in a calculation.
Working with Probability and Statistics 45