Module 5 Review

Front

What is a scatter plot?

Back

A scatter plot 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 in a scatter plot indicate?

Back

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

Front

What is the range of the correlation coefficient 'r'?

Back

The correlation coefficient 'r' ranges from -1 to 1.

Front

What does an 'r' value of 0 indicate?

Back

An 'r' value of 0 indicates no correlation between the two variables.

Front

How do you interpret an 'r' value of 0.942?

Back

An 'r' value of 0.942 indicates a very strong positive correlation between the two variables.

Front

What is the purpose of the line of best fit in a scatter plot?

Back

The line of best fit is used to summarize the relationship between the variables and to make predictions.

Front

What does it mean if the line of best fit has a positive slope?

Back

A positive slope indicates that as the independent variable increases, the dependent variable also increases.

Front

What is the formula for the line of best fit?

Back

The formula for the line of best fit is typically expressed as y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the significance of the slope in the line of best fit?

Back

The slope indicates the rate of change of the dependent variable with respect to the independent variable.

Front

How can you determine the strength of a correlation from a scatter plot?

Back

The strength of a correlation can be determined by how closely the points cluster around the line of best fit.