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The Local Police, Using Radar, Checked the Speeds (In Mph)

Question 70

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The local police, using radar, checked the speeds (in mph) of 30 motorists in a construction area. The results arelisted below. Construct a frequency bar graph and a relative frequency bar graph.  Speed  Frequency 333533638639416424464547348506\begin{array} { c | c } \text { Speed } & \text { Frequency } \\\hline 33 - 35 & 3 \\36 - 38 & 6 \\39 - 41 & 6 \\42 - 44 & 6 \\45 - 47 & 3 \\48 - 50 & 6\end{array}

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