Final answer:
The appropriate central tendency measure for a variable like aggressiveness, which is measured as high or low, is the median.
Step-by-step explanation:
The appropriate central tendency measure for a variable like aggressiveness, which is measured as high or low, is the median.
The median represents the middle value in a data set when it is arranged in ascending or descending order. In this case, since there are only two categories, high and low, the median will represent the central point between the two categories.
For example, if we have a data set of aggressiveness levels for a group of individuals, and the values are arranged in ascending order as low, low, high, high, high, low, the median would be high.