8.22 Key Features of Scatter Plots

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What is a scatter plot?

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A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

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CCSS.8.SP.A.1

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What does it mean to identify clusters in a scatter plot?

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Identifying clusters means finding groups of data points that are close together in the plot, indicating a concentration of values.

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CCSS.8.SP.A.1

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What is an outlier in a scatter plot?

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An outlier is a data point that is significantly different from other observations, often lying far away from the main cluster of points.

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CCSS.8.SP.A.1

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How can you identify gaps in a scatter plot?

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Gaps are identified as spaces between clusters of data points where there are no observations.

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CCSS.8.SP.A.1

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What does a cluster at x = 14 indicate?

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It indicates that there is a concentration of data points around the x-value of 14, suggesting a common value or trend.

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CCSS.HSA-SSE.A.1A

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What does an outlier at x = 6 suggest?

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It suggests that the value at x = 6 is significantly different from the other data points, which may indicate an anomaly or special case.

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Why is it important to identify outliers in data analysis?

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Identifying outliers is important because they can skew results and affect the overall interpretation of the data.

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What is the significance of identifying gaps in a scatter plot?

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Identifying gaps can reveal areas where data is missing or where there may be a lack of correlation between variables.

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CCSS.8.SP.A.1

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What does it mean if there are no noteworthy clusters in a scatter plot?

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It means that the data points are spread out without any significant grouping, indicating a lack of correlation.

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CCSS.HSF-LE.A.1B

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How can clusters and outliers affect the interpretation of data?

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Clusters can indicate trends or patterns, while outliers can suggest anomalies that may need further investigation.