ANSWER
Mode
Step-by-step explanation
To answer this question, we have to know the definition of each option:
=> MEAN: this is the average value of a data set which is calculated by adding all the values in the data set and dividing by the number of data points.
=> MEDIAN: this is the value that occurs in the middle of a data set when it is arranged in numerical order. It can be identified form a data set but some times, it has to be calculated.
=> MODE: this is the value that occurs most frequently in a dat set. It is always identified from the data set.
=> RANGE: this is calculated by finding the difference between the greatest value and the least value.
Any term that can be or has to be calculated might not be found in the data set.
As we can see, there is only one term that is not calculated but instead identified, that is the mode.