Line of Best Fit

Front

What is the equation of the line of best fit?

Back

y = -2x + 10

Front

What are the coordinates of the outlier in a dataset?

Back

(9, 1)

Front

What type of correlation indicates that as one variable increases, the other variable also increases?

Back

Positive Correlation

Front

What type of correlation indicates that as one variable increases, the other variable decreases?

Back

Negative Correlation

Front

What does a weak correlation imply about the relationship between two variables?

Back

The relationship is not strong, and changes in one variable do not consistently predict changes in the other.

Front

What is the formula for calculating the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1)

Front

What is the y-intercept in the equation of a line?

Back

The y-intercept is the value of y when x = 0.

Front

How can you identify an outlier in a scatter plot?

Back

An outlier is a point that lies far away from the other points in the dataset.

Front

What is the purpose of the line of best fit in data analysis?

Back

To summarize the relationship between two variables and make predictions.

Front

What does a positive correlation coefficient indicate?

Back

It indicates a direct relationship where both variables move in the same direction.