Stats review- Unit 3 test

Front

What is the equation of the line of best fit?

Back

Front

What does a linear relationship in a scatter plot indicate?

Back

A linear relationship indicates that as one variable increases or decreases, the other variable tends to do the same in a consistent manner.

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 a positive linear association mean in a scatter plot?

Back

A positive linear association means that as one variable increases, the other variable also increases, resulting in an upward trend.

Front

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

Back

A negative linear association means that as one variable increases, the other variable decreases, resulting in a downward trend.

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; changes in one variable do not predict changes in the other.

Front

What is the purpose of the line of best fit?

Back

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

Front

How can you determine the line of best fit from a scatter plot?

Back

The line of best fit can be determined by visually inspecting the scatter plot and drawing a line that best represents the trend of the data points.

Front

What is the slope of a line in the context of a line of best fit?

Back

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

Front

What does the y-intercept represent in the equation of a line?

Back

The y-intercept represents the value of the dependent variable when the independent variable is zero.