Scatter Plots and Line of Best Fit

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 the line of best fit represent in a scatter plot?

Back

The line of best fit represents the trend in the data, showing the general direction that the data points follow.

Front

What is correlation in statistics?

Back

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

Front

What is a strong correlation?

Back

A strong correlation indicates that the data points are closely clustered around the line of best fit, suggesting a strong relationship between the variables.

Front

What is a weak correlation?

Back

A weak correlation indicates that the data points are more spread out from the line of best fit, suggesting a weaker relationship between the variables.

Front

What is no correlation?

Back

No correlation means there is no apparent relationship between the two variables, and the data points do not follow any trend.

Front

What is a positive correlation?

Back

A positive correlation occurs when an increase in one variable leads to an increase in another variable.

Front

What is a negative correlation?

Back

A negative correlation occurs when an increase in one variable leads to a decrease in another variable.

Front

How do you determine the equation of the line of best fit?

Back

The equation of the line of best fit can be determined using statistical methods such as linear regression.

Front

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

Back

The slope indicates the rate of change between the two variables; a positive slope means a positive correlation, while a negative slope indicates a negative correlation.