Calculate Karl Pearson's coefficient of correlation from the follow...

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Calculate Karl Pearson's coefficient of correlation from the following data and interpret the result:
\begin{tabular}{|l|c|c|c|c|c|c|c|c|c|c|}
\hline Serial number of student & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\
\hline Marks in mathematics & 15 & 18 & 21 & 24 & 27 & 30 & 36 & 39 & 42 & 48 \\
\hline Marks in statistics & 25 & 25 & 27 & 27 & 31 & 33 & 35 & 41 & 41 & 45 \\
\hline
\end{tabular}
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