Lung nodules are usually about 0.2 inch (5 millimeters) to 1.2 inches (30 millimeters) in size. A larger lung nodule, such as one that's 30 millimeters or larger, is more likely to be cancerous than is a smaller lung nodule.
In statistics, mean absolute deviation is a one of the ways to describe the variability of quantitative data. Mean absolute deviation is used to measure the average amount by which all values in a data set vary from their mean.
Find the mean (average) of the absolute values: Step 3: This value is the Mean Absolute Deviation (MAD). Since the MAD is small, it implies that the mean of 89 is indicative of the other values within the data set.