Scatter Plots and Correlations - Day 1

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 none.

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

What is a scatter plot?

Back

A scatter plot is a graph that displays values for typically two variables for a set of data.

Front

What does a linear relationship in a scatter plot look like?

Back

A linear relationship in a scatter plot appears as a straight line, indicating a consistent rate of change between the variables.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually assess the relationship between two quantitative variables.

Front

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

Back

A positive correlation is identified when the points on the scatter plot slope upwards from left to right.

Front

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

Back

A negative correlation is identified when the points on the scatter plot slope downwards from left to right.

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; more study time typically leads to higher scores.