The "mean" in statistics is the average of all the observations in a data set; or,
mean = (sum of all observations) / (number of observations)
Example:
I weigh 5 rocks and get the following results:
1kg 2kg 3kg 4kg 5kg
The average weight of these rocks is: (1+2+3+4+5)/5 = 3 kg
In statistics, this is the symbol for the "Variance"
the mean is important in statistics because you will find out your average and can compare that mean to other things..
What do you mean by statistics? Re-Ask the question.
descriptive statistics
They are statistics of central tendency.
no
the mean is affected by outliers
Mean is the average.
Probability/ Statistics
Examples of descriptive statistics are mean, median, mode, and midrange.
The mean is called a non-resistant measure in statistics.
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