Scatter plots and Association

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 positive association in a scatter plot indicate?

Back

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

Front

What does a negative association in a scatter plot indicate?

Back

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

Front

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

Back

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

Front

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

Back

A positive correlation is identified when the data points slope upwards from left to right.

Front

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

Back

A negative correlation is identified when the data points slope downwards from left to right.

Front

What is the significance of the slope in a scatter plot?

Back

The slope indicates the direction and strength of the relationship between the two variables.

Front

What is an example of a positive association?

Back

An example of a positive association is the relationship between the number of hours studied and test scores.

Front

What is an example of a negative association?

Back

An example of a negative association is the relationship between the amount of time spent watching TV and test scores.

Front

What is an example of no correlation?

Back

An example of no correlation is the relationship between shoe size and intelligence.