In matlab

If a random variable X is distributed normally with zero mean and unit standard deviation, the probability that 0 3 X x is given by the standard normal function (x). This is usually looked up in tables, but it may be approximated as follows: where 0.436 1 836, b =-0. I 20 I 676, c-0.937298, r exp(-0.5x2) 2T, and = 1/(1 + 0.3326x) Write a function to compute (x), and use it in a program to write out its values for 0-x-4 in steps of 0, 1 . Check. (1-0.3413