Texas Instruments TI-25X Solar User Manual page 14

Example: Analyze the following test scores. Assume that
the four students are the entire population: 96, 81, 87, 70.
Comments
Clear display
Clear register
1st entry
2nd entry
3rd entry (incorrect)
3rd entry (removed)
3rd entry (correct)
4th entry
Mean (class average)
Standard Deviation
Variance
Important: Remember to press
statistics register and return to arithmetic calculations.
Keystrokes
[ ]
CSR
96
81
97
97
87
70
[ ] to clear the
CSR
14 ENG
Display
0.
0.
1.
2.
3.
2.
3.
4.
83.5
9.4472218
89.25