IM Algebra I Unit 3 Review

Front

What is correlation in statistics?

Back

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

Front

What does a negative correlation indicate?

Back

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

Front

What is a scatterplot?

Back

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

Front

What is the line of best fit?

Back

The line of best fit is a straight line that best represents the data on a scatterplot, used to make predictions.

Front

How do you determine the line of best fit?

Back

The line of best fit can be determined using methods such as least squares regression.

Front

What is the purpose of the line of best fit?

Back

The purpose of the line of best fit is to make predictions about one variable based on the value of another.

Front

What does a positive correlation indicate?

Back

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

Front

What is a linear relationship?

Back

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

Front

What is the formula for a linear equation?

Back

The formula for a linear equation is typically written as 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 (m) represents the rate of change of y with respect to x in a linear equation.