The dot plot shows the number of pencils students have in their pencil cases. The number line represents the number of pencils. Each X above the number line represents a student who has that number of pencils. Use the dot plot to answer each question.
The figure shows a dot plot for Number of Pencils in a Student's Pencil Case. A portion of number line is shown from 0 to 12 and is labeled as Number of Pencils. 2 crosses are made above the number 0, 3 crosses are made above the number 1, 5 crosses are made above the number 2, 4 crosses are made above the number 3, 2 crosses are made above the number 4, and 1 cross is made above the number 8.
A. What do the 5 Xs above the number 2 represent?
B. Why are there no Xs over the number 5?
C. Identify any outliers. Explain what that means in terms of the number of pencils in pencil cases.
A. The 5 Xs above the number 2 represent 5 students who have 2 pencils in their pencil cases.
B. There are no Xs over the number 5 because no student in the data set has 5 pencils in their pencil case.
C. There are no outliers in this data set. An outlier is a data point that is significantly different from the rest of the data. In terms of the number of pencils in pencil cases, an outlier would be a student who has a much larger or much smaller number of pencils than the rest of the students in the data set. However, all the data points in this dot plot seem to be clustered together, without any extreme values.