The arithmetic mean of five numbers is 14, and the arithmetic mean of the other three numbers is 1.24.
| April 9, 2021 | education
The arithmetic mean of five numbers is 14, and the arithmetic mean of the other three numbers is 1.24. Find the arithmetic mean of these eight numbers.
Find the sum of the first five numbers.
We multiply their arithmetic mean by the number of numbers.
1.4 * 5 = 7.
In a similar way, we determine the sum of 3 other numbers.
3 * 1.24 = 3.72.
The sum of all eight numbers will be:
7 + 3.72 = 10.72.
Thus, the arithmetic mean of all numbers will be:
10.72 / 8 = 1.34.
Answer: The arithmetic mean of the numbers is 1.34.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
