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
Data set warm-up - Questions
- The following table shows the number of raisins in a scoop of different brands of raisin bran cereal.
\(
\begin{array}{lcccc}
\text { Brand } & \text { Generic } & \text { Clayton's } & \text { Good2go } & \text { Right from Nature } \\
\hline \text { Raisins } & 4 & 9 & 5 & 5
\end{array}
\)
How many brands of raisin bran are shown in the table?
_______ brands
What was the fewest baskets a student made?
_______ baskets
How many kindergarten teachers have at least 13 students in their class?
________ kindergarten teachers
-
The following data points represent the number of jokers in each of Benjamin's decks of cards.
\(2,1,2,0,1,2,1,4,4,2\)
What is the most frequent number of jokers?
________ jokers
Below is the volume of gas (in liters) in the tank of each race car in today's race.
\(
\begin{array}{|c|c|c|}
\hline \dfrac{8}{5} & \dfrac{3}{5} & \dfrac{1}{5} \\
\hline \dfrac{6}{5} & \dfrac{3}{5} & \dfrac{4}{5} \\
\hline
\end{array}
\)
How many drivers were in today's race?
________ drivers
Nate weighed each of his cats. He found that Betty weighed \(1 \frac{1}{4}\) kilograms, Fido weighed 2 kilograms, Spot weighed \(1 \frac{5}{8}\) kilogram, Yogi weighed \(3 \frac{4}{9}\) kilograms, and Smarts weighed \(4 \frac{1}{10}\) kilograms.
What was the weight of Nate's heaviest cat?
________ kg
How many stores made more than 10 sundaes on Monday?
________ stores