Mean: The mean of a data set is the average of all the data values. Mean is one of the most widely used measures of central tendency for various data distributions.
If the data are from a sample, the mean is denoted by
x = ?xi
___
n
For example arithmetic mean of sample 2,3,4,4,4,4,5,6 is 32/8 = 4
If the data are from a population, the mean is denoted by Calculating mean
µ = ?xi
____
N
Sathish Emmadi
Sathish Emmadi is a co-founder & editor at Lastbull.com. He is presently working in IT for one of the world’s top mutual fund companies. Handled multiple projects in BFSI (Banking,Financial Services and Insurance) domain. An Engineering Graduate from NITW.
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