Scatterplot 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 a positive correlation indicate in a scatter plot?

Back

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

Front

What does a negative correlation indicate in a scatter plot?

Back

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

Front

What does 'no correlation' mean in a scatter plot?

Back

No correlation means there is no apparent relationship between the two variables; changes in one do not affect the other.

Front

What is the purpose of a 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 do you determine the slope of a line of best fit?

Back

The slope of a line of best fit is determined by the change in the y-values divided by the change in the x-values between two points on the line.

Front

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

Back

Front

What does the y-intercept represent in a scatter plot?

Back

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

Front

What is an outlier in a scatter plot?

Back

An outlier is a data point that is significantly different from other points in the dataset, often lying far away from the trend.

Front

How can you identify a strong correlation in a scatter plot?

Back

A strong correlation is identified when the data points closely follow a clear linear pattern, either positively or negatively.