Scatterplots & MAD

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional plane.

Front

What does the term 'Line of Best Fit' refer to in a scatterplot?

Back

The Line of Best Fit is a straight line that best represents the data on a scatterplot, indicating the trend of the data points.

Front

How do you calculate the Mean Absolute Deviation (MAD)?

Back

To calculate MAD, find the mean of the data set, then calculate the absolute differences between each data point and the mean, and finally find the average of those absolute differences.

Front

What is the formula for calculating the mean of a data set?

Back

The mean is calculated by adding all the numbers in the data set and dividing by the total number of values.

Front

If the data set is 10, 5, 7, 14, 19, 32, 25, what is the mean?

Back

The mean is 12.

Front

What does a scatterplot with no clear trend indicate?

Back

A scatterplot with no clear trend suggests that there is no significant relationship between the two variables being analyzed.

Front

What is the significance of the x-axis and y-axis in a scatterplot?

Back

The x-axis typically represents the independent variable, while the y-axis represents the dependent variable.

Front

How can you interpret a positive correlation in a scatterplot?

Back

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

Front

What does a negative correlation in a scatterplot indicate?

Back

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

Front

What is the Mean Absolute Deviation of the set: 0, 0, 5, 6, 9, 2?

Back

The Mean Absolute Deviation is 3.