scatter plots and line of best fit

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship of two data sets.

Front

What is an outlier in a scatter plot?

Back

An outlier is a point that is far outside the main cluster of points/ordered pairs.

Front

What does a negative correlation in a scatter plot indicate about x and y values?

Back

As x increases, y decreases.

Front

What does a positive correlation in a scatter plot indicate about x and y values?

Back

As x increases, y increases.

Front

What is the purpose of a line of best fit?

Back

A line of best fit is used to represent the trend in a scatter plot and make predictions.

Front

How can you identify a line of best fit?

Back

A line of best fit can be identified as the line that best represents the data points in a scatter plot.

Front

What is the equation of a line of best fit?

Back

The equation of a line of best fit can be in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

What does the slope of a line in a scatter plot represent?

Back

The slope represents the rate of change between the two variables.

Front

What does the y-intercept of a line in a scatter plot represent?

Back

The y-intercept represents the value of y when x is zero.

Front

What is the difference between correlation and causation?

Back

Correlation indicates a relationship between two variables, while causation indicates that one variable directly affects the other.