I couldn't find one on the net, so I converted the one on my 35s for the 42s. It's my first 42s program.

SET = Set mean and std dev.

LT = Lower Tail

LTI = Lower Tail Inverse (put in probability, get X)

UT = Upper Tail

UTI = Upper Tail Inverse

00 { 372-Byte Prgm }

01 LBL "NRML"

02 CLMENU

03 "SET"

04 KEY 1 XEQ "NRMSET"

05 "LT"

06 KEY 2 XEQ "NRMLT"

07 "UT"

08 KEY 3 XEQ "NRMUT"

09 "LTI"

10 KEY 4 XEQ "NRMLTI"

11 "UTI"

12 KEY 5 XEQ "NRMUTI"

13 MENU

14 STOP

15 GTO "NRML"

16 LBL "NRMSET"

17 CLMENU

18 0

19 STO "M"

20 INPUT "M"

21 1

22 STO "S"

23 INPUT "S"

24 RTN

25 LBL "NRMUT"

26 CLMENU

27 INPUT "X"

28 XEQ "NRMQ"

29 STO "Q"

30 VIEW "Q"

31 RTN

32 LBL "NRMLT"

33 CLMENU

34 INPUT "X"

35 XEQ "NRMQ"

36 +/-

37 1

38 +

39 STO "Q"

40 VIEW "Q"

41 RTN

42 LBL "NRMUTI"

43 CLMENU

44 INPUT "Q"

45 RCL "M"

46 STO "X"

47 XEQ "NRMT"

48 RTN

49 LBL "NRMLTI"

50 CLMENU

51 INPUT "Q"

52 1

53 RCL "Q"

54 -

55 STO "Q"

56 RCL "M"

57 STO "X"

58 XEQ "NRMT"

59 RTN

60 LBL "NRMT"

61 XEQ "NRMQ"

62 RCL- "Q"

63 RCL "X"

64 STO "D"

65 ROLLDOWN

66 XEQ "NRMF"

67 RCL/ "T"

68 /

69 STO+ "X"

70 ABS

71 0.0001

72 X<Y?

73 GTO "NRMT"

74 RCL "X"

75 VIEW "X"

76 RTN

77 LBL "NRMQ"

78 RCL "M"

79 STO "LLIM"

80 RCL "X"

81 STO "ULIM"

82 PGMINT "NRMF"

83 INTEG "D"

84 2

85 PI

86 x

87 SQRT

88 RCLx "S"

89 STO "T"

90 \

91 +/-

92 0.5

93 +

94 RTN

95 LBL "NRMF"

96 MYVAR "D"

97 RCL "D"

98 RCL- "M"

99 RCL\ "S"

100 X^2

101 2

102 \

103 +/-

104 e^X

105 RTN