Shows four spectral densities and four covariance functions. Match up the corresponding spectral densities and covariance functions. Shows realizations of two stationary processes, U(t) and V(t), with...

Shows four spectral densities and four covariance functions. Match up the corresponding spectral densities and covariance functions.

Shows realizations of two stationary processes, U(t) and V(t), with the following spectral densities:

(a) Find

(b) Which realization belongs to which process?