Scatter Plots (Flashcard 4.1)

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 correlation in a scatter plot indicate?

Back

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

Front

What does a negative correlation in a scatter plot indicate?

Back

A negative correlation 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 discernible relationship between the two variables; changes in one do not affect the other.

Front

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

Back

A positive relationship is identified when the data points trend upwards from left to right.

Front

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

Back

A negative relationship is identified when the data points trend downwards from left to right.

Front

What are outliers in a scatter plot?

Back

Outliers are data points that fall far away from the general pattern of the data, potentially indicating anomalies.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually assess the relationship between two variables and to identify trends, correlations, and outliers.

Front

What does the slope of the trend line in a scatter plot represent?

Back

The slope of the trend line represents the rate of change between the two variables.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation implies that one variable directly affects the other.