$+,$ in which $m$ is the mean value and $$ is the standard deviation. Assume $m=3$ and $=2$ use MATLAB to plot the curve for the probabality density function $f(x)$ and the probability distribution finction $F(x)$ when the range of $x$ is $m-3a,m+3.$ Please altach your MATLAB code here $($Note do not use EXCEL$).$