Given Independent Random Variables with Means and Standard Deviations as Shown,find

question 49

Multiple Choice

Given independent random variables with means and standard deviations as shown,find the mean and standard deviation of the variable $$X _ { 1 } + X _ { 2 }$$ $$\begin{array} { c | c c } & \text { Mean } & \text { SD } \\\hline \mathrm { X } & 14 & 3 \\\mathrm { Y } & 60 & 8\end{array}$$

• A)? = 28,? = 4.24
• B)? = 74,? = 8.54
• C)? = 28,? = 6
• D)? = 28,? = 2.45
• E)? = 74,? = 11

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The process by which individuals choose partners based on a variety of factors, including personal preferences, social standards, and evolutionary influences.

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