01
Press these keys
STAT→CALC→1:1-Var Stats→Calculate
Step 1 of 4. Press STAT.
02
Walkthrough
- 1Prepare lists
Put data in L1. If values have frequencies, put frequencies in L2.
- 2Run analysis
STAT → CALC → 1:1-Var Stats; choose List L1 and FreqList 1 or L2.
- 3Read correctly
x̄ is mean; Sx is sample SD; σx is population SD; scroll for min, Q1, Med, Q3 and max.
03
Worked example
For 2,4,4,4,5,5,7,9, find mean and population SD.
NORMAL FLOAT AUTO REAL MP
n=8x̄=5Σx=40σx=2Sx≈2.138AnswerMean 5; population standard deviation 2.