Algebra 1: Scatter Plots and Linear Regression

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 positive correlation indicate in a scatter plot?

Back

A positive correlation indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative correlation indicate in a scatter plot?

Back

A negative correlation indicates that as one variable increases, the other variable tends to decrease.

Front

What is linear regression?

Back

Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Front

What is the equation of a line in slope-intercept form?

Back

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

Front

What is the slope in a linear equation?

Back

The slope is a measure of the steepness of a line, indicating how much the dependent variable changes for a unit change in the independent variable.

Front

What is the y-intercept in a linear equation?

Back

The y-intercept is the value of the dependent variable when the independent variable is zero, represented by the point (0, b) on the graph.

Front

What does correlation measure?

Back

Correlation measures the strength and direction of a linear relationship between two quantitative variables.

Front

What is causation?

Back

Causation indicates that one event is the result of the occurrence of another event, meaning one variable directly affects the other.

Front

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

Back

A positive correlation can be identified in a scatter plot when the data points trend upwards from left to right.