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Questions: Algebra BusinessCalculus
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A bag contains 2 blue marbles, and 3 black marbles. If 2 marbles are selected, what is the probability of picking 2 blue marbles?
There are \(\displaystyle C(5,2)=10\) to select 2 marbles. There are \(\displaystyle 1\) ways to select 2 blue from 2 blue. This gives the probability \(\displaystyle \frac{1}{10}\)
\begin{question}A bag contains 2 blue marbles, and 3 black marbles. If 2 marbles are selected, what is the probability of picking 2 blue marbles?
\soln{9cm}{There are $C(5,2)=10$ to select 2 marbles. There are $1$ ways to select 2 blue from 2 blue. This gives the probability $\frac{1}{10}$}
\end{question}
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\begin{document}\begin{question}(10pts) The question goes here!
\soln{9cm}{The solution goes here.}
\end{question}\end{document}<p> <p>A bag contains 2 blue marbles, and 3 black marbles. If 2 marbles are selected, what is the probability of picking 2 blue marbles?</p> </p>
<p> <p>There are <img class="equation_image" title=" \displaystyle C(5,2)=10 " src="/equation_images/%20%5Cdisplaystyle%20C%285%2C2%29%3D10%20" alt="LaTeX: \displaystyle C(5,2)=10 " data-equation-content=" \displaystyle C(5,2)=10 " /> to select 2 marbles. There are <img class="equation_image" title=" \displaystyle 1 " src="/equation_images/%20%5Cdisplaystyle%201%20" alt="LaTeX: \displaystyle 1 " data-equation-content=" \displaystyle 1 " /> ways to select 2 blue from 2 blue. This gives the probability <img class="equation_image" title=" \displaystyle \frac{1}{10} " src="/equation_images/%20%5Cdisplaystyle%20%5Cfrac%7B1%7D%7B10%7D%20" alt="LaTeX: \displaystyle \frac{1}{10} " data-equation-content=" \displaystyle \frac{1}{10} " /> </p> </p>