Unit 3 8.FGR.6 Review

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 the line of best fit represent in a scatter plot?

Back

The line of best fit represents the trend of the data points in a scatter plot, indicating the general direction of the relationship between the variables.

Front

How do you determine the line of best fit?

Back

The line of best fit can be determined using statistical methods such as least squares regression, which minimizes the distance between the data points and the line.

Front

What is a positive linear association?

Back

A positive linear association occurs when an increase in one variable corresponds to an increase in another variable, resulting in a straight line that slopes upwards.

Front

What is a negative association?

Back

A negative association occurs when an increase in one variable corresponds to a decrease in another variable, resulting in a straight line that slopes downwards.

Front

What does no association mean in a scatter plot?

Back

No association means that there is no discernible relationship between the two variables, and the data points are scattered randomly.

Front

What is a nonlinear association?

Back

A nonlinear association occurs when the relationship between two variables cannot be accurately represented by a straight line, often resulting in a curve.

Front

How can you predict values using a trend line?

Back

You can predict values by locating the desired x-value on the trend line and finding the corresponding y-value.

Front

What is the equation of a line in slope-intercept form?

Back

Front

What does the slope of a line indicate?

Back

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