Matlab programs need to be explained through comment lines.a- Use Matlab to gene

Matlab programs need to be explained through comment lines.a-
Use Matlab to generate uniform exponential Rayleigh
and gamma RVs for different values
of the parameters a and b. Plot the probability density function
(pdf) curves for each RV and compare with the analytical pdfs.b-
It is well-known that the sum of independent and
identically distributed exponential RVs has a gamma distribution. Generate six
independent exponential RVs with a=0 and b=4 (or mu=4)
sum them and plot the pdf of the sum. Compare the obtained pdf with the
theoretical gamma pdfand comment on the
obtained results.
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