How To Find Standard Deviation On TI-84?

Press `STAT`

Select `1:Edit`

Enter your data into a list, such as `L1`

Press `STAT`

Move right to `CALC`

Select `1-Var Stats`

Press `2nd` then `1` to paste `L1` if needed

Press `ENTER`

Find `Sx` for sample standard deviation

Find `σx` for population standard deviation