Power spectrum describes distribution of _________ under frequency domain.(a) Mean(b) Variance(c) Gaussian(d) None of the mentionedI got this question by my college director while I was bunking the class.I'd like to ask this question from Spectral Density and Autocorrelation in division Signals and Spectra of Digital Communications

Power spectrum describes distribution of _________ under frequency dom

1.	Power spectrum describes distribution of _________ under frequency domain.(a) Mean(b) Variance(c) Gaussian(d) None of the mentionedI got this question by my college director while I was bunking the class.I'd like to ask this question from Spectral Density and Autocorrelation in division Signals and Spectra of Digital Communications
Answer» RIGHT answer is (b) Variance The best explanation: Power SPECTRUM gives the distribution of variance of a signal in the frequency domain, SAMPLED into SPECTRAL components.

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