Which term is used for the average of all values in a data set?

The term that refers to the average of all values in a dataset is the mean. The mean is calculated by summing all the individual values and then dividing by the total number of values in that set. It represents the central tendency of the data, providing a measure that is sensitive to the magnitude of all values, making it a useful summary statistic when you want a number that reflects the overall quantity.

In contrast, standard deviation measures the dispersion or variability of the dataset, indicating how spread out the values are around the mean. The mode identifies the most frequently occurring value in the data set, while the range calculates the difference between the maximum and minimum values, giving insight into the spread of the data but not summarizing the average value itself. Thus, the mean is the appropriate term for the average of all values in a data set.