The signal-to-noise ratio of a set of data is obtained by dividing the mean by the standard deviation. Find the signal-to-noise ratio for the following sample of weights (in pounds): $$\begin{array} { l l l l l }
160 & 123 & 186 & 105 & 197 \
120 & 172 & 157 & 116 & 125
\end{array}$$
A) 4.6
B) 4.3
C) 4.5
D) 0.2

Question

The signal-to-noise ratio of a set of data is obtained by dividing the mean by the standard deviation. Find the signal-to-noise ratio for the following sample of weights (in pounds): $$\begin{array} { l l l l l } 
160 & 123 & 186 & 105 & 197 \
120 & 172 & 157 & 116 & 125
\end{array}$$
A) 4.6
B) 4.3
C) 4.5
D) 0.2

Quizplus · Accepted Answer

The mean of the sample is 146.1 and the standard deviation is 32.3. Dividing the mean by the standard deviation gives a signal-to-noise ratio of approximately 4.5.

The Signal-To-Noise Ratio of a Set of Data Is Obtained 160123186105197120172157116125\begin{array} { l l l l l } 160 & 123 & 186 & 105 & 197 \\120 & 172 & 157 & 116 & 125\end{array}160120​123172​186157​105116​197125​

The Signal-To-Noise Ratio of a Set of Data Is Obtained $\begin{array} { l l l l l } 160 & 123 & 186 & 105 & 197 \\120 & 172 & 157 & 116 & 125\end{array}$