Scatter Plots Flashcard

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 on a two-dimensional axis.

Front

What does a trend line in a scatter plot represent?

Back

A trend line is a straight line that best represents the data points in a scatter plot, indicating the general direction of the relationship between the variables.

Front

How can you predict values using a scatter plot?

Back

You can predict values by using the trend line to estimate the corresponding value of one variable based on the value of another variable.

Front

What is a linear relationship?

Back

A linear relationship is a relationship between two variables that can be represented by a straight line on a graph.

Front

What is a positive correlation in a scatter plot?

Back

A positive correlation occurs when an increase in one variable leads to an increase in the other variable, resulting in an upward trend in the scatter plot.

Front

What is a negative correlation in a scatter plot?

Back

A negative correlation occurs when an increase in one variable leads to a decrease in the other variable, resulting in a downward trend in the scatter plot.

Front

What does no correlation mean in a scatter plot?

Back

No correlation means that there is no apparent relationship between the two variables, and the data points do not show any clear trend.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually represent the relationship between two variables, helping to identify patterns, trends, and correlations.

Front

How do you identify a positive relationship in scatter plots?

Back

A positive relationship is identified when the data points trend upwards from left to right.

Front

How do you identify a negative relationship in scatter plots?

Back

A negative relationship is identified when the data points trend downwards from left to right.