Bivariate Data

Front

What is bivariate data?

Back

Bivariate data involves two variables and is used to determine the relationship between them.

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.

Front

What does a trend line represent in a scatter plot?

Back

A trend line represents the general direction or pattern of the data points in a scatter plot.

Front

How do you interpret the slope of a trend line?

Back

The slope indicates the rate of change of the dependent variable (y) with respect to the independent variable (x).

Front

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

Back

The equation is y = mx + b, where m is the slope and b is the y-intercept.

Front

What does a positive association in bivariate data indicate?

Back

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

Front

What does a negative association in bivariate data indicate?

Back

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

Front

What is an outlier in a data set?

Back

An outlier is a data point that differs significantly from other observations in the data set.

Front

How can you identify an outlier in a scatter plot?

Back

An outlier can be identified as a point that is far away from the trend line or other data points.

Front

What is a line of best fit?

Back

A line of best fit is a straight line that best represents the data on a scatter plot.