State Whether or Not Each of the Following Are Valid $\begin{array}{c|cccc}x & 0 & 1 & 2 & 3 \\\hline p(x) & .15 & .25 & .35 & .45\end{array}$

question 49

Essay

State whether or not each of the following are valid probability distributions, and if not, explain why not. a.
$\begin{array}{c|cccc}x & 0 & 1 & 2 & 3 \\\hline p(x) & .15 & .25 & .35 & .45\end{array}$

b.
$\begin{array}{c|cccc}x & 2 & 3 & 4 & 5 \\\hline p(x) & -.10 & .40 & .50 & .25\end{array}$

c.
$\begin{array}{c|ccccc}x & -2 & -1 & 0 & 1 & 2 \\\hline p(x) & .10 & .20 & .40 & .20 & .10\end{array}$

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Definitions:

Edward T. Hall

An anthropologist known for his studies on cultural perceptions of space and communication theories.

Low-Context Cultures

Cultures that emphasize communication via spoken or written words.

Communication

The process of transferring information, ideas, or feelings between individuals or groups to achieve understanding or share meaning.

Spoken Words

Oral forms of communication or expression, involving speech or verbal language used to convey thoughts, information, or feelings.