9/25/2025 Assignment

Front

What is a line of best fit?

Back

A line that best represents the data on a scatter plot, showing the trend of the data points.

Front

How do you calculate the line of best fit using linear regression?

Back

Use statistical methods to find the equation of the line that minimizes the distance between the line and all data points.

Front

What is the formula for a linear function?

Back

f(x) = mx + b, where m is the slope and b is the y-intercept.

Front

What does the slope of a linear function represent?

Back

The rate of change of the dependent variable with respect to the independent variable.

Front

What is the y-intercept in a linear equation?

Back

The value of y when x is 0, representing where the line crosses the y-axis.

Front

How do you evaluate a function at a specific point?

Back

Substitute the value of x into the function and simplify to find f(x).

Front

What is a correlation coefficient (r)?

Back

A statistical measure that describes the strength and direction of a relationship between two variables.

Front

What does a correlation coefficient of -0.999 indicate?

Back

A very strong negative linear relationship between the two variables.

Front

What is linear regression?

Back

A statistical method used to model the relationship between a dependent variable and one or more independent variables.

Front

How do you interpret the results of a linear regression analysis?

Back

Examine the slope, intercept, and correlation coefficient to understand the relationship between variables.