- Kamila makes a dot plot showing the heights of some sunflowers. She describes
- Her dot plot as follows: "The distribution is skewed right. There is an outlier."
- Which dot plot matches her description?
Answer:
See attached photo.
"Choice D" The dot plot with the outlier at 4 feet and data points condensed on the right from 5.5-7 feet is the correct dot plot.
Explanation:
Explanation
A dot plot is a statistical chart consisting of data points plotted on a simple scale, typically using filled-in circles.
A skew represents the direction in which the data points follow.
- A negative skew indicates that the majority of the data points fall on the left side of the scale. Ex: "The height of the sunflowers in feet decreases when less sunlight is given."
- A positive skew indicates that the majority of the data points fall on the right side of the scale. Ex: "The height of the sunflowers in feet increases when more sunlight is given."
An outlier is a data point that "stands out" from other data points.
Answer Breakdown
- Choices A and B are skewed left because their data points lie on the left side of the number line. These data points display a decrease in the sunflowers' height. So they are automatically eliminated.
- Choice C is skewed right, however, it contains no outliers. All the data points are condensed evenly to one side. This answer is incorrect.
- Choice D is the correct answer. The data points lie on the right side of the scale. There is also one outlier present at 4 feet, separating it from the rest of the data points.
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