Excalibur Statistics Examples

  List: 25, 24, 23, 22, 20, 18, 17, 16, 14, 10, 8

Enter list numbers one at a time using the mouse and calculator keypad. After each number enter Σ+. See fig 1 & 2.

After entering last number (8) and entering Σ+, see fig 3 & 4, the number 11 displays which is the number of items.

Now you can get the results, fig 5 & 6, fig 7 & 8

  n = 11,   Σ X = 197,   Σ XX = 3843,   aveX = 17.9091,   sX = 5.6117

See: StDevFrm Examples

fig 1 enter 25 with mouse from keypad	fig 2 enter Σ+
Fig 3 enter 8 (last number)	fig 4 Σ+
fig 5 enter ΣX	fig 6 enter ΣXX
fig 7 enter aveX (Mean)	fig 8 enter sX (Sample Standard Deviation)

 Statistical Functions:

Sum X  Returns the total sum of all X values entered into the statistics registers (ΣX).

Sum X Squared Returns the total sum of all X values squared (ΣXX).

Ave X  Returns the Mean value of X (average value of X).

sX  Sample Standard Deviation of X.