Scatterplots and Linear Regression

Front

What is a scatterplot?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them using points on a Cartesian plane.

Front

What does a strong positive correlation indicate in a scatterplot?

Back

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

Front

How can you identify a positive relationship in a scatterplot?

Back

A positive relationship in a scatterplot is identified when the points trend upwards from left to right.

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data points in a scatterplot, showing the overall trend.

Front

What does the slope of the line of best fit represent?

Back

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

Front

What is causation?

Back

Causation indicates that one event is the result of the occurrence of another event.

Front

What is correlation?

Back

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

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.

Front

How do you determine the strength of a correlation?

Back

The strength of a correlation can be determined by the correlation coefficient, which ranges from -1 to 1.

Front

What does a correlation coefficient of 0 indicate?

Back

A correlation coefficient of 0 indicates no correlation between the two variables.