Construct a less than cumulative frequency curve and a greater than cumulative frequency curve a...

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PW Solutions
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Frequency (2001)
Duration: 10:52
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Construct a less than cumulative frequency curve and a greater than cumulative frequency curve and answer the following:
\begin{tabular}{cc}
Dot & Number of Persons \\
\hline \( 20-30 \) & 5 \\
\( 30-40 \) & 12 \\
\( 40-50 \) & 17 \\
\( 50-60 \) & 36 \\
\( 60-70 \) & 20 \\
\( 70-80 \) & 10 \\
\( 80-90 \) & 8 \\
\( 90-100 \) & 2
\end{tabular}
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