# calculer une moyenne

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In math language, the "average" is commonly referred to as the "mean" or "mean number." In fact, in stats there are two other kinds of averages –"modus" and "medium." But the word "average" let you find mean of two numbers or group numbers in math, which can be calculated with fundamental addition and division.

## Why to Find Average?

What does the “average” or “mean” means? The sum of the values to be used by the count (or quantity) of the number in that set is technically split. In real world terms, however, it is more like evenly distributing the value of the whole set between the numbers, and then turning to the value of all the numbers.

Theoretically, by counting (or quantity) of the amount in the set, you divide the amount of those values with which you are dealing. In real, it is more like the equal distribution between each of its figures of the valuation of the full set and to step back then to see the value at which all numbers ended.

This sort of average is helpful to understand large data sets or to estimate a whole group. For instance, the average GPA for your students, the average pay for a certain job, the average GPA for the classroom, the average amount of time to walk to a bus stop etc. may be required.

## Average Formula

Generally, by adding all of the numbers and then by dividing, you can calculate the mean of a number. For a group of numbers, \(\lbrace x1, x2, x3,……….. xj\rbrace\) the mean or average is the addition of all "x” divided by "j."

In simple words:
The mean of two digits is \(x= \dfrac{(a+ b)}{2}\) where “X” is average and a, b are two digits.

## How to find Average or Mean value?

The arithmetic mean or average can be easily find in a list of given numbers. The average is just the sum of the numbers in a particular problem, divided by the total number. For example, if four numbers are added in their sum, then the average or arithmetic mean is divided by four.

As mentioned above, average or arithmetic mean is sometimes mistaken for two other ideas: median and mode. The mode is the most common value in a number group, whereas the median is the center of the specified set.

## Uses of Average Calculator

You should know how the mean or average of a series of figures can be calculated. It will enable you, among other stuff, to calculate your average grade point. However, for several other situations too, you will need to calculate the mean value.

The mean or average value makes it possible to better comprehend the most prevalent conditions for Economists, Demographers, Biologists, Statisticians, and others.

For example, by calculating and comparing an American family's average income with the average cost of a house, the extent of the financial difficulties faced by most American households may be better understood.

Likewise, by examining an average temperature at a given moment of year in a given region, probable weather can be predicted and a broad variety of appropriate choices can be made.

## Examples

### Example 1

What’s the average of 8 and 10?

Solution:
Numbers added: \(8+ 10 = 18 \)
Divided by total Numbers: \(\dfrac{18}{2}= 09\)
09 is the average number of 8 and 10.

### Example 2

Calculate the average of the given numbers \(24, 29, 31, 34, 42, 56\)

Solution:
There are  6 Number So, add together all of the numbers and divide the total by 6 in order to get the mean.

Average \(= \dfrac{(24 + 29 + 31 + 34 + 42 + 56)}{6}\)
Average \(= \dfrac{216}{6}\)
Average \(= 36 \)

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