Unit 5 Review

Front

What is a scatter plot?

Back

A scatter plot is a type of graph that uses dots to represent the values obtained for two different variables - one plotted along the x-axis and the other plotted along the y-axis.

Front

What does a positive linear association in a scatter plot indicate?

Back

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

Front

What does a negative linear association in a scatter plot indicate?

Back

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

Front

What does 'no association' mean in the context of a scatter plot?

Back

'No association' means that there is no discernible relationship between the two variables being plotted.

Front

What type of graph is best for showing the relationship between two quantitative variables?

Back

A scatter plot is best for showing the relationship between two quantitative variables.

Front

What is the purpose of making predictions based on a scatter plot?

Back

The purpose is to estimate the value of one variable based on the value of another variable using the trend shown in the scatter plot.

Front

What is a line graph used for?

Back

A line graph is used to display data points over time or to show trends in data.

Front

How can you identify a nonlinear association in a scatter plot?

Back

A nonlinear association can be identified when the data points do not form a straight line and instead show a curved pattern.

Front

What is correlation in statistics?

Back

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

Front

What does a correlation coefficient of -1 indicate?

Back

A correlation coefficient of -1 indicates a perfect negative linear relationship between two variables.