Clusters and Outliers

Front

What is a cluster in data analysis?

Back

A cluster is a grouping of data points that are close together in a scatter plot.

Front

What is an outlier?

Back

An outlier is a data point that is significantly different from other data points in a dataset.

Front

Which scatter plot shows a linear relationship between x and y?

Back

A scatter plot where the points form a straight line.

Front

What does it mean if a graph has a cluster?

Back

It indicates that there are groups of data points that are closely packed together.

Front

How do 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.

Front

What is the best fit line in a scatter plot?

Back

The best fit line is a straight line that best represents the data points in a scatter plot.

Front

What is correlation in data analysis?

Back

Correlation refers to the relationship between two variables and how they change together.

Front

What are the coordinates of the outlier in the dataset?

Back

The coordinates of the outlier are the specific x and y values that are significantly different from the rest.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two numerical variables using dots.

Front

What does a positive correlation look like in a scatter plot?

Back

A positive correlation is indicated by points that trend upwards from left to right.