Question

Which descriptive statistic is the most informative and the most useful? Why?

Answer 1

There are so many descriptive statistics that are informative and useful for description of data. But, arithmetic mean or average is the most informative and the most useful descriptive statistic because it explains entire data in a single point or single value. This single value or mean is the representative of the entire data set. For detailed description of any data set, we require some more descriptive statistics such as standard deviation, range, etc. In most of the situations, we use mean or average for the description of the phenomenon. Also, we use average or mean most commonly in daily practical life. Most of the time, we are talking about averages.