Scatter Plots & Data Analysis Unit Test
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Question
Use the image to answer the question.
A scatterplot shows the number of cups of coffee sold versus temperature.
The horizontal axis shows temperature, in degrees Fahrenheit, ranging from 0 to 70 in increments of 5, with an initial jump from 0 to 25. The vertical axis shows number of cups of coffee sold, ranging from 0 to 60 in increments of 10. A kink is shown on the horizontal axis close to origin. A tightly packed cluster of data plots is plotted between 30 to 37 on the horizontal axis and 42 to 48 on the vertical axis. A loosely packed cluster of data plots is plotted between 40 to 51 on the horizontal axis 30 and 38 on the vertical axis and. A dot is plotted at 62 on the horizontal axis and 5 on the vertical axis.
Numbers of Cups of Coffee Sold Versus Temperature
Interpret the scatterplot by describing any outliers and patterns of clustering.
(4 points)
In the scatterplot, there is one outlier, which is a single dot plotted at 62 degrees Fahrenheit and 5 cups of coffee sold. This point is far from the rest of the data points, indicating that it is unusual compared to the rest of the observations.
In terms of clustering, there are two main clusters of data points. One tightly packed cluster is located between 30 to 37 degrees Fahrenheit on the horizontal axis and 42 to 48 cups of coffee sold on the vertical axis. The second loosely packed cluster is between 40 to 51 degrees Fahrenheit on the horizontal axis and 30 to 38 cups of coffee sold on the vertical axis.
Overall, the pattern of clustering in the scatterplot suggests that there is a relationship between temperature and the number of cups of coffee sold, with temperature possibly influencing sales within certain ranges. The outlier at 62 degrees Fahrenheit and 5 cups of coffee sold might represent unusual or extreme conditions that are not typical of the data set.