Find the Expected Value of a Random Variable X Having

question 117

Short Answer

Find the expected value of a random variable X having the following probability distribution: $$\begin{array} { c c c c c } x & 2 & 4 & 6 & 8 \\P ( X = x ) & \frac { 7 } { 20 } & \frac { 2 } { 20 } & \frac { 5 } { 20 } & \frac { 6 } { 20 }\end{array}$$ ​ $$E ( X ) =$$ __________

---

Definitions:

Long-Term Orientation

A cultural dimension that reflects a society's time perspective and an attitude of perseverance and thrift.

Uncertainty Avoidance

A cultural dimension that describes the degree to which societies are willing to tolerate ambiguity and uncertainty.

Delaying Gratification

The ability to postpone immediate pleasure or satisfaction in order to achieve a longer-term goal.

Uncertainty Avoidance

A cultural dimension that describes the degree to which people in a society feel uncomfortable with ambiguity and uncertainty.