AIR MATH

Math Question

The following frequency table represents the number of drinks someone has in a week for 40 people. What is the 70 th percentile of the data?
\begin{tabular}{|c|c|}
\hline Value (number of drinks) & Frequency \\
\hline 1 & 2 \\
\hline 2 & 4 \\
\hline 3 & 3 \\
\hline 4 & 3 \\
\hline 5 & 5 \\
\hline 6 & 3 \\
\hline 7 & 2 \\
\hline 8 & 2 \\
\hline 9 & 5 \\
\hline 10 & 1 \\
\hline 11 & 2 \\
\hline 12 & 4 \\
\hline 13 & 4 \\
\hline
\end{tabular}

Solution

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