scatterplot

Front

What is a scatterplot?

Back

A scatterplot is a type of graph that displays values for typically two variables for a set of data. Each point on the graph represents an observation.

Front

What does a trend line in a scatterplot indicate?

Back

A trend line indicates the general direction that a group of points seems to be heading. It can help in predicting values.

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 scatterplot. It is used to make predictions based on the data.

Front

What does positive correlation mean in a scatterplot?

Back

Positive correlation means that as one variable increases, the other variable also tends to increase.

Front

What does negative correlation mean in a scatterplot?

Back

Negative correlation means that as one variable increases, the other variable tends to decrease.

Front

What does no correlation mean in a scatterplot?

Back

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

Front

How can you estimate values using a scatterplot?

Back

You can estimate values by finding the corresponding point on the trend line for a given value of one variable.

Front

What is the purpose of using a scatterplot?

Back

The purpose of using a scatterplot is to visually display the relationship between two quantitative variables.

Front

What is the significance of the x-axis and y-axis in a scatterplot?

Back

The x-axis typically represents the independent variable, while the y-axis represents the dependent variable.

Front

How do you interpret the slope of a trend line?

Back

The slope of a trend line indicates the rate of change between the two variables; a steeper slope means a stronger relationship.