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}