- C Programming Examples
- C Programming Examples
- C Print Hello World
- C Get Input from User
- C Print Integer
- C Add Two Numbers
- C Add Subtract Multiply Divide
- C Add n Numbers
- C Area Perimeter of Square
- C Area Perimeter of Rectangle
- C Area Circum of Circle
- C Fahrenheit to Celsius
- C Celsius to Fahrenheit
- C Inches to Centimeters
- C Kilogram to Gram
- C Reverse a Number
- C Swap Two Numbers
- C Interchange Numbers
- C Print ASCII Value
- C Print Fibonacci Series
- C Check Palindrome or Not
- C Check Armstrong or Not
- C Find Armstrong Numbers
- C Find nCr and nPr
- C Find Profit Loss
- C Sum of their Square
- C First & Last Digit Sum
- C Sum of All Digit
- C Product of All Digit
- C Print Total Digit in Number
- C Check Perfect Number
- C Find Basic Gross Salary
- C Round Number to Integer
- C Print Series upto n Term
- C Find Factors of Number
- C if-else & Loop Programs
- C Check Even or Odd
- C Check Prime or Not
- C Check Alphabet or Not
- C Check Vowel or Not
- C Check Leap Year or Not
- C Is Reverse Equal Original
- C Make Calculator
- C Add Digits of Number
- Count Positive Negative Zero
- C Largest of Two Numbers
- C Largest of Three Numbers
- C Smallest of Two Numbers
- C Smallest of Three Numbers
- C Find Factorial of Number
- C Find LCM & HCF
- C Find LCM of n Numbers
- C Find HCF of n Numbers
- C Find Arithmetic Mean
- C Find Average, Percentage
- C Find Student Grade
- C Print Table of Number
- C Print Prime Numbers
- C Find Discount Purchase
- C Calculate Parcel Charge
- C Calculate Wage of Labor
- C Print Phone Bill
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- C Decimal to Binary
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- C Largest Element in Array
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- C Second Largest/Smallest
- C Count Even Odd
- C Array Element at Even
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- C Print Even Array Elements
- C Print Odd Array Elements
- C Sum/Product of Even/Odd
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- C Insert Element in Array
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- C Print Common Elements
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- C Add Two Matrices
- C Subtract Two Matrices
- C Transpose a Matrix
- C Multiply Two Matrices
- C Sum All Matrix Elements
- C Largest Element in Matrix
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- C 3D Array Programs
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- C Find Length of String
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- C Count Vowels Consonants
- C Replace Vowel in String
- C Delete Vowels from String
- C Delete Word from String
- C Frequency of Character
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- C Sort String in Alphabetical
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- C Uppercase to Lowercase
- C Lowercase to Uppercase
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- C Check Anagram or Not
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- C Print Number in Words
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- Generate Random Numbers
- C Print Date Time
- C Print Message with Time
- C Get IP Address
- C Print Smiling face
- C Pass Array to Function
- Add Two Numbers using Pointer
- C Address of Variable
- C Shutdown Computer
- C Programming Tutorial
- C Tutorial

# C Program to Calculate Arithmetic Mean

In this article, you will learn and get code about how to find the arithmetic mean of a given list of numbers given by the user (at run-time).

#### How is the Arithmetic Mean calculated?

To calculate the arithmetic mean, use the formula **mean = (n _{1}+n_{2}+n_{2}+...+n_{n})/n**.
Here,

**n**represents the first number,

_{1}**n**represents the second number, and so on. Whereas

_{2}**n**(in the denominator part) is a value that represents the quantity of a number. For example, if there are three numbers, say 3, 5, and 8. So to find its arithmetic mean, use the formula given earlier. Therefore, the arithmetic mean of 3, 5, and 8 will be

**(3+5+8)/3**or

**16/3**or

**5.33**.

## C Arithmetic Mean Program

To calculate the arithmetic mean in C programming, you have to ask the user to enter how many numbers he or she wants to provide (quantity), say 3. Then ask them to enter all the numbers (say 3, 5, and 8) of that size (3). Now apply the simple formula for finding the arithmetic mean as shown here in the following program:

#include<stdio.h> #include<conio.h> int main() { int i, size; float num, sum, am; printf("How many number to enter ? "); scanf("%d", &size); sum = 0; printf("Enter %d Numbers: ", size); for(i=0; i<size; i++) { scanf("%f", &num); sum = sum+num; } am = sum/size; printf("\nArithmetic Mean = %0.2f", am); getch(); return 0; }

This program is compiled and executed using the Code::Blocks IDE. Here is a sample run of the above program:

Now supply the size (how many numbers the user wants to enter to find the arithmetic mean of these entered numbers), say 3. Then enter all three numbers, say 3, 5, and 8, and finally press the ENTERÂ key to see the output as shown in the snapshot given below:

#### Steps used in previous program

Here is a list of some of the main steps used in the above program:

- Declare any two variables of type
**int**, say**size**and**i**. - Declare another three variables of type
**float**: say**num, sum**, and**am**. - Here,
**num**is used to store the value of each number one by one,**sum**is used to store the summation of numbers, and**am**is used to store the arithmetic mean value of all the numbers given by the user. - Receive the array size from the user.
- Now create a
**for**loop to scan all the numbers of that size. For example, if the user supplies 10 as the size, then create a loop to run 10 times to scan all the 10 numbers one by one. - After each scan, apply the summation operation, so that after exiting from the loop, you will have a variable
named
**sum**that holds the sum of all the numbers given by the user. - Now just apply the arithmetic mean formula and print the value of
**am**as output. - The
**%0.2f**format specifier is used to print values up to 2 decimal places only.

#### The same program in different languages

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