You will add the shadowing effect to the path loss exponent model (3) (see the (7)). Given the carrier frequency f = 2,000 MHz, = 3 and standard deviation = 3dB, plot the PL [dB] when the distance varies from 500 meters to 10 kilometers. (15 points) * Originally, since X is a Gaussian random variable, you should run your script several times and plot the average. However, when you add the result figure in your report, you can add the first result figure. * Useful Functions: size, randn, mean 11) On the above graph (Question 10), plot FSPL from Question 2 and PL from (3) for the same parameters. Be sure to clearly label your plots. (5 points) * Plot PLs on the same graph. 12) Describe the difference among these 3 PL models