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

Reading dot plots & frequency tables - Questions

1. The following dot plot shows the number of cavities for each patient seen by Dr. Hall last week. Each dot represents a different patient.


What was the minimum number of cavities that a patient had?

_____ cavities

2. The following frequency table shows the number of strokes it took each golfer to complete Hole 3 .

\begin{array}{cc}\text { Number of strokes } & \text { Number of golfers } \\\hline 1 & 0 \\\hline 2 & 4 \\\hline 3 & 14 \\\hline 4 & 10 \\\hline 5 & 4 \\\hline 6 & 2 \\\hline \end{array}

What was the most frequent number of strokes?

______ strokes

3. The following dot plot shows the height of each toddler at Ms. Cabrera's daycare. Each dot represents a different toddler.


How many toddlers are in Ms. Cabrera's daycare?

______ toddlers

4. The following frequency table shows the number of Jui's pictures that have been published in each of the local magazines.

\begin{array}{cc}\text { Number of pictures } & \text { Number of magazines } \\\hline 0 & 2 \\\hline 1 & 1 \\\hline 2 & 3 \\\hline 3 & 2 \\\hline  4 & 1 \\\hline \end{array}

What is the most frequent number of pictures?

______ pictures