The mean (or average) is the most popular and well known measure of central tendency. It can be used with both discrete and continuous data, although its use is most often with continuous data. The mean is equal to the sum of all the values in the data set divided by the number of values in the data set.
Mean: Add up the numbers and divide by how many numbers.
Examples:
Examples:
Uncle Bob wants to know the average age at the party, to choose an activity.
There will be 6 kids aged 13, and also 5 babies aged 1.
Add up all the ages, and divide by 11 (because there are 11 numbers):
(13+13+13+13+13+13+1+1+1+1+1)
11
= 7.5
Easy to understand!
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