Frequency Tables and Dot Plots
Sometimes it is helpful to know how many times a given data point occurs in the set of numbers. This is easy to find out if the data is organized in a frequency table or a dot plot. Watch the video and complete the corresponding interactive exercises.
Practice
Creating frequency tables - Questions
1. The data below shows the number of times that each of the eight students in the Wright Alternative Learning Program has been suspended from school.
\(
\begin{array}{|c|c|c|c|}
\hline 4 & 7 & 6 & 5 \\
\hline 4 & 7 & 5 & 5 \\
\hline
\end{array}
\)
Using this data, create a frequency table.
\(
\begin{array}{cc}
\hline\text { Number of times being suspended } & \text { Number of students } \\
\hline 4 & \text{_____} \\
\hline 5 & \text{_____} \\
\hline 6 & \text{_____} \\
\hline 7 & \text{_____} \\
\hline
\end{array}
\)
2. The following data points represent the number of holes that moths ate in each of Grandma Marion's dresses.
\(7,8,8,5,7,8\)
Using this data, create a frequency table.
\(
\begin{array}{cc|}
\text { Number of holes } & \text { Number of dresses } \\
\hline 5 & \text{_____} \\
\hline 6 & \text{_____} \\
\hline 7 & \text{_____} \\
\hline
\end{array}
\)
3. The data below shows the number of children that each of the eight members of Moms' Club has.
\(
\begin{array}{|c|c|c|c|}
\hline 3 & 5 & 4 & 5 \\
\hline 5 & 3 & 1 & 2 \\
\hline
\end{array}
\)
Using this data, create a frequency table.
\(
\begin{array}{cc}
\text { Number of children } & \text { Number of members } \\
\hline 1 & \text{_____} \\
\hline 2 & \text{_____} \\
\hline 3 & \text{_____} \\
\hline 4 & \text{_____} \\
\hline 5 & \text{_____} \\
\hline
\end{array}
\)
4. The following data points represent the number of players on the Russian Bears volleyball team that were injured in each match this year.
\(1,2,2,1,2,1\)
Using this data, create a frequency table.
\(
\begin{array}{cc}
\text { Number of injured players } & \text { Number of matches } \\
\hline 0 & \text{_____} \\
\hline1 & \text{_____} \\
\hline 2 & \text{_____} \\
\hline
\end{array}
\)