Generation and testing of a random sinusoid (a) write a matlab routine random. sin. m to generate 100 discrete-time sequences r(nt) that are sampled (i. e., discrete-time) versions of the sample functions of the random process x(t) of example 6.7 for time period from zero to 1 second, with a 1, wo 10? and t 0.02 second (i. e., sampling rate is 50 hz). plot three of these sequences in one plot. (b) find the average value of the 100 sequences at t - nt0.4 second. justify your result