Consider the discrete probability distribution to the right when answering the following question. Find theprobability that x equals 5. $$\begin{array} { l | c c c c }
\mathrm { x } & 2 & 5 & 6 & 8 \
\hline \mathrm { P } ( \mathrm { x } ) & 0.16 & ? & 0.3 & 0.21
\end{array}$$
A) 0.33
B) 0.67
C) 1.65
D) 3.35

Question

Consider the discrete probability distribution to the right when answering the following question. Find theprobability that x equals 5. $$\begin{array} { l | c c c c } 
\mathrm { x } & 2 & 5 & 6 & 8 \
\hline \mathrm { P } ( \mathrm { x } ) & 0.16 & ? & 0.3 & 0.21
\end{array}$$
A) 0.33
B) 0.67
C) 1.65
D) 3.35

Quizplus · Accepted Answer

The sum of probabilities in a discrete probability distribution must equal 1. Adding the known probabilities: 0.16 + 0.3 + 0.21 = 0.67. Subtracting this from 1 gives 1 - 0.67 = 0.33, which is the probability that x equals 5.

Consider the Discrete Probability Distribution to the Right When Answering x2568P(x)0.16?0.30.21\begin{array} { l | c c c c } \mathrm { x } & 2 & 5 & 6 & 8 \\\hline \mathrm { P } ( \mathrm { x } ) & 0.16 & ? & 0.3 & 0.21\end{array}xP(x)​20.16​5?​60.3​80.21​​

Consider the Discrete Probability Distribution to the Right When Answering $\begin{array} { l | c c c c } \mathrm { x } & 2 & 5 & 6 & 8 \\\hline \mathrm { P } ( \mathrm { x } ) & 0.16 & ? & 0.3 & 0.21\end{array}$