Find the specified probability.
-Use the special addition rule and the following probability distribution to determine $P ( X \geq 8 )$.
$\begin{array}{cccccccc}
\mathrm{X} & 5 & 6 & 7 & 8 & 9 & 10 & 11 \
\hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & 0.05 & 0.05 & 0.20 & 0.15 & 0.15 & 0.10 & 0.30
\end{array}$
A)$0.45$
B) $0.15$
C) $0.70$
D) $0.30$

Question

Find the specified probability.
-Use the special addition rule and the following probability distribution to determine $P ( X \geq 8 )$.
$\begin{array}{cccccccc}
\mathrm{X} & 5 & 6 & 7 & 8 & 9 & 10 & 11 \
\hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & 0.05 & 0.05 & 0.20 & 0.15 & 0.15 & 0.10 & 0.30
\end{array}$  
A)$0.45$
B) $0.15$
C) $0.70$
D) $0.30$

Quizplus · Accepted Answer

To find $P(X \geq 8)$, we add the probabilities of X being 8, 9, 10, and 11. Thus, $0.15 + 0.15 + 0.10 + 0.30 = 0.70$.

Find the Specified Probability P(X≥8)P ( X \geq 8 )P(X≥8)

Find the Specified Probability $P ( X \geq 8 )$