The mean is one of the numbers in a data.
Mean of a given data:
Mean is equal to the sum of all the values in the collection of data divided by the total number of values. It represents the average of the given collection of data.
Example: Let the scores of different players in a match be . Then the mean score .
Clearly, is not scored by any player, and still mean of the data is .
Mean may be or may not be one of the numbers in a data.
Thus, the statement, “The mean is one of the numbers in a data” is false.