Solve the Problem $$\begin{array} { l l l l l } 128 & 147 & 186 & 105 & 197 \\155 & 172 & 130 & 116 & 125\end{array}$$

question 99

Multiple Choice

Solve the problem.
-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) : $$\begin{array} { l l l l l } 128 & 147 & 186 & 105 & 197 \\155 & 172 & 130 & 116 & 125\end{array}$$

• A) 4.9
• B) 4.5
• C) 0.2
• D) 4.7

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Definitions:

Unsystematic Risk

Also known as specific risk, it refers to the risk associated with individual assets, distinct from the market's overall movements.

Systematic Risk

The inherent risk associated with the entire market or market segment, which cannot be mitigated through diversification.

Beta Coefficient

An indicator of how much a stock's price fluctuates compared to the entire market.

Volatility

Denotes the degree of variation of a trading price series over time, usually measured by the standard deviation of logarithmic returns, indicating the stability or instability of markets.