Determine Whether the Following Is a Probability Distribution

Essay

Determine whether the following is a probability distribution. If not, identify the requirement
that is not satisfied.
$\begin{array} { c | c } \boldsymbol { x } & \boldsymbol { P } ( \boldsymbol { x } ) \\\hline 0 & 0.109 \\1 & 0.208 \\2 & 0.246 \\3 & 0.159 \\4 & 0.096 \\5 & 0.228\end{array}$