Barry Kissane
NORMAL
Purpose
To generate values for areas between two values of a normal probability distribution with mean M and standard deviation S.
Operation
Enter the mean and standard deviation, each followed by 
. (For the standard normal (z) distribution, enter M = 0 and S = 1.)
Then enter the lower value and the upper value, each followed by 
. The probability that the normal random variable will have a value between these two is then printed, correct to four decimal places.
Press 
to enter another pair of lower and upper values for the same distribution.
To find probabilities associated with a different normal distribution, press 
and then start the program again.
Test the program by inputting values of
The program can be made faster (but less accurate) by changing the fourth line. For example, changing it to
will make it faster, but a little less accurate. Increasing N will, of course, make it more accurate but slower.
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