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

  1. 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

  1.  

    What was the fewest baskets a student made?
    _______ baskets

  2. How many kindergarten teachers have at least 13 students in their class?

    ________ kindergarten teachers

  3. 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

  4. 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

  5. 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


  6. How many stores made more than 10 sundaes on Monday?

    ________ stores