How to find the average arithmetic, and where it can come in handy in everyday life

What is the arithmetic mean? How to find the arithmetic mean? Where and for what is this value applied?

To fully understand the essence of the problem, it is necessary to study algebra in school for several years, and then higher mathematics in the institute. But in everyday life, in order to know how to find the arithmetic mean of numbers, it is not necessary to know everything about it in detail. Explaining in plain language, this is the sum of numbers divided by the number of these summands of numbers.

Since it is not always possible to calculate the arithmetic mean without a remainder, the value can even be fractional, even when calculating the average number of people. This is due to the fact that the arithmetic mean is an abstract concept.

This abstract magnitude affects many spheres of modern life. It is used in mathematics, business, statistics, often even in sports.

For example, many are interested in the average age of all members of a collective or the average number of foods eaten per month in terms of one day. And the data about how much was spent on an expensive event on average, are found in all sources of the mass media. Most often, of course, such data are used in statistics: to know exactly which phenomenon has been degraded and which has increased; What product is most in demand and at what period; For ease of elimination of unwanted indicators.

In sports, we can meet the concept of the average when we, for example, declare the average age of athletes or goals scored in football. And how do they calculate the earned average score during the competition or on all of our favorite KVN? Yes, for this, nothing else needs to be done, how to find the arithmetic average of all the judges' grades!

By the way, often in school life, some teachers resort to this method, producing quarterly and annual grades for their students. It is also often used in higher education institutions, often in schools, for calculating the average student achievement ball to determine the effectiveness of the teacher or to distribute students according to their capabilities. Still there are many spheres of life in which this formula is used, but the goal is basically one - to learn and control.

In business, the arithmetic mean can be used to calculate and monitor revenues and losses, salaries and other expenses. For example, when submitting certificates to some organizations on income, it is just the average monthly salary for the last six months. Surprising is the fact that some employees, whose duties include collecting such information, having received a certificate not with average monthly earnings, but simply about incomes for six months, does not know how to find the arithmetic mean, that is, to calculate the average monthly salary.

The average arithmetic value is the average value of any characteristic (price, salary, population, etc.), the volume of which does not change during the calculation. In simple words, when the average number of apples eaten by Petya and Masha is calculated, the number will be equal to half of the total number of apples. Even if Masha ate ten, and Petya got only one, then when we divide their total number in half, then we will get the average arithmetic value.

Today, many people joke about Putin's statement that the average salary in Russia is 27 thousand rubles. The jokes of wits mostly sound like this: "Or am I not a Russian? Or am I no longer living? "And the question is just that these wits, too, apparently do not know how to find the average arithmetic salaries of Russians.

You just need to combine the incomes of the oligarchs, business leaders, businessmen on the one hand, and the wages of cleaners, janitors, sellers and conductors on the other. And then the amount received divided by the number of people whose income included this amount. Here and get an amazing figure, which is expressed by 27 000 rubles.