Line 
Command or Statement 
Comments 
1. 
ClrHome 
Clear Screen 
2. 
Disp "SELECT LIST OR" 
Instructions 
3. 
,"DATA TO BEGIN " 
 
4. 
,"USE COMMAS BTWN" 
 
5. 
,"NUMBERS IN LIST" 
 
6. 
,"ENTER n, Σx, Σx²" 
 
7. 
,"FOR DATA" 
End Instructions 
8. 
Pause 

9. 
ClrHome 

10. 
Float 

11. 
Menu("STD DEV","LIST",L,"DATA",D 

12. 
Lbl D 
Input Data 
13. 
Disp "DATA Input" 

14. 
Input "n =",N 
n = sample size 
15. 
Input "Σx =",B 
Σx = sumX 
16. 
Input "Σx² =",Y 
Σx² = sumXsquared 
17. 
Goto X 

18. 
Lbl L 
Input List 
19. 
Disp "LIST Input" 

20. 
Input "L1=",Str1 

21. 
expr("{"+Str1>L1 

22. 
ClrHome 
clear screen  calculations 
23. 
dim(L1>N 
n dim( calculator formula 
24. 
sum(L1>B 
Σx; sum( calculator formula 
25. 
sum(L1²>Y 
Σx² sum( calculator formula 
26. 
Lbl X 
formula calculations & display 
27. 
B/N >C 
calculates mean x 
28. 
((Y  ((B) ²/N))/(N  1)) >V 
calculates variance 
29. 
√(V) > S 
standard deviation 
30. 
ClrHome 
Clear screen  display 
31. 
Disp "n = 

32. 
Output(1,4,N 
display n 
33. 
Disp "Σx = 

34. 
Output(2,5,B 
display Σx 
35. 
Disp "Σx ² = 

36. 
Output(3,6,Y 
display Σx ² 
37. 
Fix 4 
set decimal to 4 places 
38. 
Disp "x = 

39. 
Output(4,4,C 
display mean (x) 
40. 
Disp "S² = 

41. 
Output(5,5,V 
display variance (S²) 
42. 
Disp "S = 

43. 
Output(6,4,S 
display standard deviation (S) 
44. 
Pause 

45. 
Float 
clear fix 4 (line 37) 
46. 
ClrHome 
