The girls' plot has an outlier, while the boys' plot does not.
Step 1: Understand the question
The question asks us to identify which dot plot (boys or girls) has an outlier. An outlier is a value that significantly differs from the rest of the data.
Step 2: Look at the dot plots
Examine both the boys' and girls' dot plots. Focus on whether there is a dot that stands out or is significantly different from the others.
Step 3: Analyze the Girls' plot
Look at the girls' dot plot and observe if there is any dot that is much smaller or larger than the majority of the other dots. In this case, the explanation mentions that there is one dot in the girls' plot that lies outside the majority of the data.
Step 4: Analyze the Boys' plot
Examine the boys' dot plot and check if all the dots are close to each other, indicating that there is no dot significantly different from the others.
Step 5: Compare the findings
Based on the analysis, it is concluded that the girls' plot has an outlier because there is one dot that lies outside the majority of the data. On the other hand, the boys' plot does not have an outlier as all the dots are close to each other.
The correct answer is: A. Girls' plot has an outlier.