Unit 3 Lesson 1 Scatter Plots Practice

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two variables by displaying data points on a two-dimensional axis.

Front

What does it mean if a scatter plot shows no relationship?

Back

It means that there is no correlation between the two variables, and changes in one variable do not affect the other.

Front

What is a positive correlation in a scatter plot?

Back

A positive correlation occurs when both variables increase together, resulting in an upward trend in the scatter plot.

Front

What is a negative correlation in a scatter plot?

Back

A negative correlation occurs when one variable increases while the other decreases, resulting in a downward trend in the scatter plot.

Front

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

Back

'No correlation' means that there is no discernible pattern or relationship between the two variables.

Front

How can you identify a positive association in a scatter plot?

Back

A positive association is identified by an upward trend in the data points, indicating that as one variable increases, the other also increases.

Front

How can you identify a negative association in a scatter plot?

Back

A negative association is identified by a downward trend in the data points, indicating that as one variable increases, the other decreases.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two quantitative variables and to identify trends or correlations.

Front

What does it mean if a scatter plot is nonlinear?

Back

A nonlinear scatter plot indicates that the relationship between the variables does not follow a straight line, suggesting a more complex relationship.

Front

What is an example of a positive correlation in real life?

Back

An example of a positive correlation is the relationship between hours studied and test scores; generally, more study time leads to higher scores.