If the mean of the following data is 18 , the value of \( \mathrm{p} \) is
\begin{tabular}{|c|c|... VIDEO
If the mean of the following data is 18 , the value of \( \mathrm{p} \) is
\begin{tabular}{|c|c|c|c|c|}
\hline \( \mathbf{x} \) & 10 & 15 & 20 & 25 \\
\hline \( \mathbf{f} \) & 5 & 10 & \( \mathrm{p} \) & 8 \\
\hline
\end{tabular}
a. 5
b. 6
c. 10
d. 7
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