Scatter Plots

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 association in a scatter plot indicate?

Back

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

Front

What does a negative association in a scatter plot indicate?

Back

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

Front

What is a linear relationship in a scatter plot?

Back

A linear relationship is when the data points can be approximated by a straight line, indicating a constant rate of change.

Front

What is a nonlinear relationship in a scatter plot?

Back

A nonlinear relationship is when the data points do not form a straight line, indicating that the rate of change varies.

Front

How can you determine if a scatter plot shows no association?

Back

A scatter plot shows no association when the data points are randomly scattered without any discernible pattern.

Front

What does it mean if a scatter plot has a strong correlation?

Back

A strong correlation means that the data points are closely clustered around a line, indicating a strong relationship between the variables.

Front

What does it mean if a scatter plot has a weak correlation?

Back

A weak correlation means that the data points are more spread out and do not closely follow a line, indicating a weak relationship between the variables.

Front

What is the purpose of using scatter plots in data analysis?

Back

Scatter plots are used to visually assess the relationship between two variables, helping to identify trends, correlations, and potential outliers.

Front

What is the significance of the slope in a linear scatter plot?

Back

The slope indicates the rate of change between the two variables; a positive slope means an increase, while a negative slope means a decrease.