問題詳情

34.
If the signal-to-noise ratio for a recorded spectrum is 5, what is the signal-to-noise ratio for the average of 16 spectra recorded in the same manner?
(A) 4
(B) 5
(C) 20
(D) 40
(E) 80

參考答案

答案：C

統計：A:0,B:0,C:0,D:0,E:0

難度：計算中