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 grid.

Front

What does correlation mean in statistics?

Back

Correlation refers to a statistical measure that describes the extent to which two variables change together.

Front

What are the types of correlation?

Back

The types of correlation are positive correlation, negative correlation, and no correlation.

Front

What is a positive correlation?

Back

A positive correlation means that as one variable increases, the other variable also increases.

Front

What is a negative correlation?

Back

A negative correlation means that as one variable increases, the other variable decreases.

Front

What does no correlation mean?

Back

No correlation means that there is no predictable relationship between the two variables.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot, showing the trend of the data.

Front

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

Back

A strong positive correlation is identified when the data points are closely clustered around an upward-sloping line.

Front

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

Back

A strong negative correlation is identified when the data points are closely clustered around a downward-sloping line.

Front

What does a weak correlation look like on a scatter plot?

Back

A weak correlation appears when the data points are spread out and do not closely follow a clear trend.