On the TI83:
normalcdf(-E99,70,73,7.8/Ö(24))
Press ENTER. Get .0297673515
That is a negative sign, not a minus sign. It's found on the key
on the very bottom right. The sign is in parentheses like this (-)
on the key.
To get "normalcdf(" press 2ND VARS 2.
To get the E, press 2ND then the comma key
To get "Ö(", press 2ND x2.
The comma has a key all by itself.
The "/" is just the division key, ÷
Edwin
