User talk:Kenz0402

' How to Find the Mean' The mean is just the average of the numbers.

It is easy to calculate: Just add up all the numbers, then divide by how many numbers there are. (In other words it is the sum divided by the count)

Example 1: What is the Mean of these numbers?

3, 10, 5

Add the numbers: 3 + 10 + 5 = 18

Divide by how many numbers (ie we added 3 numbers): 18 ÷ 3 = 6

The Mean is 6 Example 2: Look at these numbers:

3, 7, 5, 13, 20, 23, 39, 23, 40, 23, 14, 12, 56, 23, 29

The sum of these numbers is equal to 330

There are fifteen numbers.

The mean is equal to 330 ÷ 15 = 22

The mean of the above numbers is 22

Negative Numbers How do you handle negative numbers? Adding a negative number is the same as subtracting the number (without the negative). For example 3 + (-2) = 3-2 = 1. So, knowing this, let us try an example:

Example 3: Find the mean of these numbers:

3, -7, 5, 13, -2

The sum of these numbers is 3-7+5+13-2 = 12

There are 5 numbers.

The mean is equal to 12 ÷ 5 = 2.4

The mean of the above numbers is 2.4

October 2008
Welcome to Wikipedia. The recent edit you made to Analytical Theory of Probabilities has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you. J.delanoy gabs adds 13:08, 21 October 2008 (UTC)