Exam DA0-001 topic 1 question 241 discussion

C. Explanation: Therefore, when you want to describe how much the values in a data set change or fluctuate, the standard deviation is the most appropriate measure. Average (Mean): While the average can tell you the central tendency of the data, it doesn't give you information about how spread out the data points are, which is what we are trying to describe with "changes in values." Range: The range only considers the highest and lowest values, ignoring the distribution of data points in between, which might not accurately represent the overall change. Standard Deviation: This statistic measures how much variation there is from the mean, giving you a better idea of how much the values in the data set are spread out. Median: The median only tells you the middle value, and doesn't provide information about how the values are distributed around that middle point, which is not what we are looking for in this case.