6.1 & 6.2

Front

What is a positive correlation?

Back

A positive correlation is a relationship between two variables where an increase in one variable leads to an increase in the other variable.

Front

What is a negative correlation?

Back

A negative correlation is a relationship between two variables where an increase in one variable leads to a decrease in the other variable.

Front

What does no correlation mean?

Back

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

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 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, used to make predictions.

Front

How do you interpret a scatter plot with a positive correlation?

Back

In a scatter plot with a positive correlation, as one variable increases, the other variable also tends to increase.

Front

How do you interpret a scatter plot with a negative correlation?

Back

In a scatter plot with a negative correlation, as one variable increases, the other variable tends to decrease.

Front

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

Back

The purpose of using a trend line is to summarize the relationship between the variables and to make predictions.

Front

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

Back

If a scatter plot shows no correlation, it indicates that there is no discernible relationship between the two variables.

Front

How can you predict values using a line of best fit?

Back

You can predict values by extending the line of best fit to estimate the value of one variable based on the value of the other.