Scatter Plots, Clusters, and Outliers

Front

What is a scatter plot?

Back

A scatter plot is a type of graph that uses dots to represent the values obtained for two different variables - one plotted along the x-axis and the other plotted along the y-axis.

Front

What is a cluster in a scatter plot?

Back

A cluster is a group of data points that are located close to each other on a scatter plot, indicating a concentration of values.

Front

What is an outlier?

Back

An outlier is a data point that is significantly different from the other data points in a dataset, often appearing far away from the main cluster.

Front

How can you identify an outlier in a scatter plot?

Back

An outlier can be identified as a point that lies far away from the other points in the scatter plot, not following the general trend.

Front

What does it mean if a scatter plot has no clusters?

Back

If a scatter plot has no clusters, it means that the data points are spread out evenly across the graph without any concentration in specific areas.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visualize the relationship between two variables, helping to identify trends, clusters, and outliers.

Front

What does a strong cluster indicate in data analysis?

Back

A strong cluster indicates that there is a significant concentration of data points in a specific area, suggesting a common relationship or trend among those points.

Front

What is the significance of identifying outliers?

Back

Identifying outliers is important because they can indicate variability in the data, errors in data collection, or unique cases that may require further investigation.

Front

What is the difference between a cluster and a gap in a scatter plot?

Back

A cluster is a group of closely packed data points, while a gap is an area in the scatter plot where there are no data points.

Front

How can you determine the year a specific amount was donated using a scatter plot?

Back

You can determine the year by locating the point on the scatter plot that corresponds to the specific donation amount and then reading the associated year on the x-axis.