What is the arithmetic average of the numbers?How to find the arithmetic mean?Where and what is the value used?
To fully grasp the essence of the problem, you need a few years to learn algebra in school, and later at the Institute of higher mathematics.But in everyday life, to know how to find the arithmetic mean of the numbers do not necessarily know about it all thoroughly.In the simplest terms, is the sum of the numbers divided by the number of terms of numbers.
So how to calculate the arithmetic mean is not always possible without a trace, the amount could even get a decimal, even when calculating the average number of people.This is due to the fact that the arithmetic average - an abstract concept.
This abstract value affects many areas of modern life.It is used in math, business, statistics, often in sports.
For example, many people are interested in the average age of all participants of any team or the average amount of food eaten in the past month in terms of one day.And the data about how much was spent on average on any costly, are found in all sources of media.Most often, of course, these data are used in the statistics: to know exactly what the phenomenon has undergone a decline and a rose;which product is most in demand, and to what period;For simplicity eliminate unwanted parameters.
In sports, we can find the concept of the average, when we, for example, announced the average age of the athletes or goals scored in football.And how calculate the average score earned during the competition or we all loved KVN?Yes, for this nothing else to do, how to find the average of all judges exposed ratings!
way, often in school life, some teachers resort to such a method, deducing and quarter-annual evaluation of their students.Also often used in higher education, often in schools, to calculate the average performance of students of the ball to determine the effectiveness of the teacher or the students distribute their capabilities.Still, there are many areas of life in which you use this formula, but basically one purpose - to learn and control.
In business, the arithmetic mean can be used for counting and control gains and losses, salaries and other expenses.For example, when submitting inquiries in some organizations the income needed just average monthly salary for the last six months.It is surprising is the fact that some of the staff, who are responsible for the collection of such information, do not get help from the average monthly wage, but simply of income for the six months, does not know how to find the arithmetic mean, ie, calculate the average monthly salary.
arithmetic mean - the average value of an attribute (prices, wages, population, etc.), The scope of which does not change in the calculation.In simple words, when the calculated average number of apples eaten Petya and Masha, you get the number that will be equal to half the total number of apples.Even if Mary had eaten ten, Pete got only one, when we divide the total number in half, and then we get the arithmetic mean value.
Today, many jokes about Putin's remarks that the average salary of living in Russia is equal to 27 thousand rubles.Jokes wits basically sound like this: "Am I not Russian?Or am I not living? "The question, then the whole is just that these wits, too, does not seem to know how to find the arithmetic average wages of people in Russia.
You just need to add up the income of oligarchs, business leaders, business people on the one hand and wages cleaners, janitors, vendors and other conductors.And then the resulting sum divided by the number of people whose income includes this amount.That's got an amazing figure, which is expressed by 27,000 rubles.
