# Define the term Mean.

Define the term Mean.
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irwchh
Mean is the average of the observations or numbers in the data. It is referred as sample mean or population mean as per the provided data. Mean is also called as expectation in case of probability distributions. Mean is the ratio of the summation of all observations and total number of observations. $x=\frac{\sum x}{n}$ Where, n is the sample size. Mean is one of the measures of central tendency which gives idea about the center of the data. That is it helps to identify the central position within the data set.