Cumulative Frequency
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The cumulative frequency table shows a set of scores.
\begin{array}{|c|c|c|}
\hline \text{ Score } & \text{ Frequency } & \text{ Cumulative Frequency } \\
\hline 1 & 2 & 2 \\
\hline 2 & 4 & 6 \\
\hline 3 & 7 & 13 \\
\hline 4 & 5 & 18 \\
\hline 5 & 3 & 21 \\
\hline
\end{array}
How many scores were recorded in total?
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