Answer:MEAN
Step-by-step explanation:Mean is a measure of central tendency it is sometimes referred to as a average of a set of numbers.The mean can also be described as the central value of a discrete set of values or numbers, the formula for Arithmetic mean is the sum of the values or number divided by the number of values or outcome.
Normal distribution is a statistical term which describes a set of values or numbers whose symmetric, unimodal, and asymptotic, and the mean, median, and mode are all equal.