Probabillity and stats.

3] a} For the signals X = A cos() and Y = A stow) where H be uniformlv distributed in the interval {0.21:}. Show that pair of random variables: X and Y are correlated and dependent to each other. b} A Gaussian noise signal has n samples X1,X2,...,Xn. Show that the 11 samples are independent Gaussian random variables. {Points-5+5}