homework help A theoretically perfect D/A converter could reconstruct the signal

Question

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A theoretically perfect D/A converter could reconstruct the signal shown below if the signal were sample data frequency of: 400 Hz. 280 Hz. 200 Hz. 80 Hz. In probability, the notation: means two things taken five at a time, where order does not matter and without replacement, is the number of combinations of two things taken five at a time, without replacement. 5! 3! 2! all of the above The mean of a set of data values {X0, x1, ..., xn} is 1 / n!(x1 + x2 +... + xn) the weighted average of the data values, all of the other choices.

Explanation / Answer

1.400

2.all

3.answer D

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