A Discrete Random Variable $\mathrm { x }$ Can Assume Five Possible Values

question 58

Multiple Choice

A discrete random variable $\mathrm { x }$ can assume five possible values: $2,3,5,8,10$ . Its probability distribution is shown below. Find the probability for the value of $x = 5$ .
$\begin{array}{c|ccccc}\mathrm{x} & 2 & 3 & 5 & 8 & 10 \\\hline \mathrm{p}(\mathrm{x}) & 0.10 & 0.20 & ? ? ? & 0.30 & 0.10\end{array}$

• A) 0.1
• B) 0.7
• C) 0.2
• D) 0.3

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