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(Solved) : Use Matlab Need 2 Functions Files Random Variable X Distributed Normally Mean 0 Standard D Q35603871

use matlab we need 2 functions files:

If a random variable X is distributed normally with mean=0 andstandard deviation =1, the probability that LaTeX: 0le Xle x 0 ≤X ≤ x is given by the standard normal function LaTeX:Phileft(xright) Φ ( x ) . This is usually looked up in a tablein a statistics textbook, but can be computed as: LaTeX:Phileft(xright)=0.5:-:rleft(at+bt^2+ct^3right) Φ ( x ) = 0.5− r ( a t + b t 2 + c t 3 ) , where a = 0.4361836, b = -0.01201676,c = 0.937298, r = LaTeX:frac{expleft(-0.5x^2right)}{sqrt{2pi}} e x p ( − 0.5 x 2 ) 2 π, and t = LaTeX: frac{1}{1+0.3326x} 1 1 + 0.3326 x . Write afunction to compute LaTeX: Phileft(xright) Φ ( x ) . Use thisfunction in a program to write out its values for LaTeX: 0le xle40 ≤ x ≤ 4 in steps of 0.1. As a check: LaTeX:Phileft(1right)=0.3413 Φ ( 1 ) = 0.3413 .

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