To find the arithmetic mean of a set of numbers, we sum all the numbers and then divide by the count of the numbers.
Add all the given numbers together:
$ 36 + 53 + 50 + 43 + 57 + 50 + 40 + 35 + 39 + 34 $
The sum is:
$ 437 $
Count how many numbers are in the list. There are 10 numbers.
Divide the sum (from Step 1) by the count (from Step 2).
The formula for the arithmetic mean is:
$ \text{Arithmetic Mean} = \frac{\sum_{i=1}^{n} x_i}{n} $
Where $ \sum_{i=1}^{n} x_i $ is the sum of the numbers and $ n $ is the total count of numbers.
Applying this:
$ \text{Arithmetic Mean} = \frac{437}{10} = 43.7 $
The arithmetic mean of the given numbers is 43.7.
The following table shows the production of tomatoes (in tons) for three different states, X, Y and Z, over the years 2016 to 2019. Based on the table answer the question given below.
| Years /States | 2016 | 2017 | 2018 | 2019 |
|---|---|---|---|---|
| X | 3 | 4.2 | 5.3 | 4.8 |
| Y | 5 | 5.4 | 4 | 5.6 |
| Z | 4.1 | 4.3 | 5 | 5.6 |
Average of 40 numbers is 71, if the number 100 replaced by 140, then average is increased by
The captain of a football team of 11 members is 28 years old and the goalkeeper is 4 years older than him. If the ages of these two are removed, then the average age of the remaining players is two years less than the average age of the whole team. What is the average age of the team?
There are two Classes A and B having 25 and 30 students respectively. In Class-A the highest score is 21 and lowest score is 17. In Class-B the highest score is 30 and lowest score is 22. Four students are shifted from Class-A to Class-B.
Consider the following statements:
1. The average score of Class-B will definitely decrease.
2. The average score of Class-A will definitely increase.
Which of the above statements is/are correct?
The average weight of A, B, Cis 40 kg, the average weight of B, D, Eis 42 kg and the weight of Fis equal to that of B. What is the average weight of A, B, C, D, Eand F?
A cow costs more than 4 goats but less than 5 goats. If a goat costs between Rs. 600 and Rs. 800, which of the following is a most valid conclusion?