# Searching for Average Man

“How many of the 4,063 people in the survey could wear such an approximately average uniform? The answer is zero.”

[Humble PI: A Comedy of Maths Errors, Matt Parker]

An average is the simplest statistic to measure the characteristics of data; just add up all the values of data and divide it by the number of data. This simple calculation has been widely used to set a standard for assessment such as average earning, average height, or average life expectancy. Statistically, the average is vulnerable to an outlier. Moreover, the average does not give us information about the distribution of data. That’s why statistical analysis usually provides the average and its standard deviation for sample data. Still, these two values are not enough to represent data due to a large variability (e.g. using any values of average and of standard deviation, we can draw a dinosaur silhouette). Hence, you should choose the right statistic for a clear understanding of the data.