Mean and Mean Absolute Deviation

Front

What is the Mean?

Back

The Mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Front

What is Mean Absolute Deviation (MAD)?

Back

Mean Absolute Deviation (MAD) is a measure of the dispersion of a set of data points around the mean, calculated as the average of the absolute differences between each data point and the mean.

Front

True or false? The larger the Mean Absolute Deviation, the more consistent the data is.

Back

False

Front

What is another word for average?

Back

Mean

Front

What is the first step in calculating the Mean Absolute Deviation?

Back

Find the mean of the data.

Front

In calculating MAD, after you find the average or mean you must _____________.

Back

Find out the distance each number is from the mean.

Front

How do you calculate the distance of a number from the mean?

Back

Subtract the mean from the number and take the absolute value of the result.

Front

If the data set is 10, 12, 14, what is the mean?

Back

The mean is 12.

Front

What is the formula for calculating Mean Absolute Deviation?

Back

MAD = (Σ |x - mean|) / n, where x is each data point, mean is the average, and n is the number of data points.

Front

What does a small Mean Absolute Deviation indicate?

Back

A small Mean Absolute Deviation indicates that the data points are close to the mean, suggesting consistency.