Unit 15 Day 3

Front

What is correlation?

Back

Correlation is a statistical measure that describes the extent to which two variables change together. It can be positive, negative, or no correlation.

Front

What does a positive correlation indicate?

Back

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

Front

What does a negative correlation indicate?

Back

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

Front

What does no correlation mean?

Back

No correlation means that there is no predictable relationship between the two variables.

Front

How can you identify a positive correlation on a graph?

Back

A positive correlation on a graph is identified by an upward slope, where points tend to rise from left to right.

Front

How can you identify a negative correlation on a graph?

Back

A negative correlation on a graph is identified by a downward slope, where points tend to fall from left to right.

Front

What is a scatter plot?

Back

A scatter plot is a graph that displays values for typically two variables for a set of data, showing how much one variable is affected by another.

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, showing the general direction of the data.

Front

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

Back

An example of a positive correlation is the relationship between study time and test scores; as study time increases, test scores tend to increase.

Front

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

Back

An example of a negative correlation is the relationship between temperature and the number of layers of clothing worn; as temperature increases, the number of layers worn decreases.