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HOW TO FIND THE FIVE–NUMBER SUMMARY, VARIANCE AND STANDARD DEVIATION WITH TI83 CALCULATOR

Steps Key Sequence Screens
1. Enter data into list, L1    
2. Select 1–Var Stats STAT
  once
  ENTER
3. Select the list, L1 2nd then 1
4. Find the Statistics ENTER
* is the mean   * Sx is the sample standard deviation   * σx is the population standard deviation
5. Find the 5-number summary use down arrow key to scroll all the way down
* minX is the minimum value   * Q1 is the first quartile   * Med is median
* Q3 is the third quartile   * maxX is the maximum value