Scatter Plots Formative

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 correlation indicate in a scatter plot?

Back

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

Front

What does a negative correlation indicate in a scatter plot?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Front

What does no correlation mean in a scatter plot?

Back

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

Front

How can you identify a trend line in a scatter plot?

Back

A trend line is a straight line that best represents the data points in a scatter plot, showing the general direction of the data.

Front

What is the purpose of using a trend line in a scatter plot?

Back

The purpose of a trend line is to predict values and understand the relationship between the variables.

Front

If a scatter plot shows a negative correlation, what happens to y as x increases?

Back

As x increases, y decreases.

Front

What is the first step in analyzing a scatter plot?

Back

The first step is to observe the overall pattern of the data points to determine the type of correlation.

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 the trend line, indicating a reliable relationship between the variables.

Front

What is an example of a situation with no correlation?

Back

The number of siblings a person has and their weight is an example of no correlation.