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Mathematics 15 Online
OpenStudy (anonymous):

How to input in scientific calculator to obtain this result?

OpenStudy (anonymous):

\[\sum_{k=9}^{13} \left(\begin{matrix}13 \\ k\end{matrix}\right) (0.5)^{13} = 0.1334\]

OpenStudy (anonymous):

i'm confused with \[\left(\begin{matrix}13 \\ k\end{matrix}\right)\]

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