Scatter Plots

Front

What is a scatter plot?

Back

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

Front

What does a cluster in a scatter plot represent?

Back

A cluster in a scatter plot represents a group of points that are close together.

Front

What does a strong negative correlation indicate in a scatter plot?

Back

A strong negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What does a strong positive correlation indicate in a scatter plot?

Back

A strong positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does 'no association' mean in the context of scatter plots?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Front

How can you predict values using a trend line in a scatter plot?

Back

You can predict values by extending the trend line and finding where it intersects with the value of interest.

Front

What is a linear relationship in a scatter plot?

Back

A linear relationship in a scatter plot is when the data points form a straight line, indicating a consistent rate of change between the variables.

Front

What is the purpose of a trend line in a scatter plot?

Back

The purpose of a trend line is to summarize the relationship between the variables and to make predictions based on the data.

Front

What does it mean if a scatter plot has outliers?

Back

Outliers are points that are far outside the main cluster of points and can indicate anomalies or unusual observations in the data.

Front

How do you identify a weak correlation in a scatter plot?

Back

A weak correlation is identified when the data points are widely scattered and do not form a clear pattern.