Scatter Plots and Correlations

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 it mean if a scatter plot has no association?

Back

It means that the ordered pairs in the scatter plot have no predictable pattern.

Front

What is a linear relationship in a scatter plot?

Back

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

Front

What does a positive correlation indicate?

Back

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

Front

What does a negative correlation indicate?

Back

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

Front

What is no correlation?

Back

No correlation means there is no relationship between the two variables; changes in one variable do not affect the other.

Front

How can you identify a strong positive correlation in a scatter plot?

Back

A strong positive correlation is identified when the data points are closely clustered around a straight line that slopes upwards.

Front

How can you identify a strong negative correlation in a scatter plot?

Back

A strong negative correlation is identified when the data points are closely clustered around a straight line that slopes downwards.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two variables and to identify trends, patterns, or correlations.

Front

What does it mean if a scatter plot shows a weak correlation?

Back

A weak correlation means that the data points are more spread out and do not closely follow a straight line, indicating a less consistent relationship.