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

question 148

Multiple Choice

Given independent random variables with means and standard deviations as shown,find the mean and standard deviation of the variable X + Y.Round to two decimal places if necessary. $$\begin{array} { l | l l } & \text { Mean } & \text { SD } \\\hline \mathrm { X } & 40 & 4 \\\mathrm { Y } & 70 & 7\end{array}$$

• A)? = 2800,? = 11
• B)? = 110,? = 65
• C)? = 110,? = 8.06
• D)? = 2800,? = 8.06
• E)? = 110,? = 11

---

Definitions:

Core Capitalist Country

A highly developed, industrialized country that is a central force in the global economic system.

Core Peripheral Country

A concept in world-systems theory describing countries that dominate in terms of advanced technology, financial resources, and economic influence, as opposed to peripheral countries that are dependent and exploited.

Geopolitically Important

Having significant influence or strategic value in global politics and international relations.

Financial Assistance

Support given in the form of money to individuals or organizations in need, often provided by governments, institutions, or private entities.