EBK BUSINESS STATISTICS
8th Edition
ISBN: 9780135179833
Author: STEPHAN
Publisher: VST
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Plot the signal x(t) = 3cos[3 n t+ n/4) in four
periods
The standard deviation of the y(t)=3
sin(20πt) is:
O 1.0606.
2.1213.
O 1.6062
O 2.2123.
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