Standard deviation is ______(a) Rms value of dc(b) Rms value or ac(c) Either ac or dc(d) Neither dc nor acI got this question in unit test.This interesting question is from Random Signals in section Signals and Spectra of Digital Communications

Standard deviation is ______(a) Rms value of dc(b) Rms value or ac(c)

1.	Standard deviation is ______(a) Rms value of dc(b) Rms value or ac(c) Either ac or dc(d) Neither dc nor acI got this question in unit test.This interesting question is from Random Signals in section Signals and Spectra of Digital Communications
Answer» CORRECT answer is (b) RMS value or ac Explanation: The standard DEVIATION of a random VARIABLE GIVES the rms value of an ac component.

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