Scatter Plots and Correlation

Front

What is a scatter plot?

Back

A scatter plot is a type of graph that uses dots to represent the values obtained for two different variables - one plotted along the x-axis and the other plotted along the y-axis.

Front

What does correlation mean in statistics?

Back

Correlation refers to a statistical relationship between two variables, indicating how one variable may change in relation to another.

Front

What are the types of correlation?

Back

There are three types of correlation: positive correlation, negative correlation, and no correlation.

Front

What is positive correlation?

Back

Positive correlation occurs when an increase in one variable leads to an increase in another variable.

Front

What is negative correlation?

Back

Negative correlation occurs when an increase in one variable leads to a decrease in another variable.

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 in a scatter plot?

Back

In a scatter plot, a positive correlation is identified when the dots trend upwards from left to right.

Front

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

Back

In a scatter plot, a negative correlation is identified when the dots trend downwards from left to right.

Front

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

Back

If a scatter plot shows no correlation, the dots are scattered randomly, indicating that changes in one variable do not affect the other.

Front

What is the purpose of using scatter plots?

Back

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