5 Key Measures of Descriptive Statistics Every Data Scientist and Analyst Should Know: Statistics is crucial to becoming a successful data scientist and analyst. These five measures are simple and the most used descriptive statistics concepts that help us understand data.✔ Mean: the average value✔ Median: the middle value✔ Mode: the value that appears the most frequent✔ Range: the difference between the maximum and the minimum value✔ Standard deviation: a measure of the amount of variation #data