﻿ Python: Check the average value of the elements of a given array of numbers is a whole number or not - w3resource

# Python: Check the average value of the elements of a given array of numbers is a whole number or not

## Python Basic - 1: Exercise-127 with Solution

Write a Python program to check whether the average value of the elements of a given array of numbers is a whole number or not.

Sample Solution-1:

Python Code:

``````# Import the 'array' module as 'arr' alias.
import array as arr

# Define a function 'test' that checks if the average value of array elements is a whole number.
def test(nums):
# Check if the remainder of the sum of array elements divided by the array length is zero.
return sum(nums) % len(nums) == 0

# Create an array 'array_num' with integer elements.
array_num = arr.array('i', [1, 3, 5, 7, 9])

# Print the original array elements using a loop.
print("Original array:")
for i in range(len(array_num)):
print(array_num[i], end=' ')

# Check if the average value of array elements is a whole number using the 'test' function.
print("\nCheck the average value of the elements of the said array is a whole number or not:\n", test(array_num))

# Create another array 'array_num' with different integer elements.
array_num = arr.array('i', [2, 4, 2, 6, 4, 8])

# Print the original array elements using a loop.
print("\nOriginal array:")
for i in range(len(array_num)):
print(array_num[i], end=' ')

# Check if the average value of array elements is a whole number using the 'test' function.
print("\nCheck the average value of the elements of the said array is a whole number or not:\n", test(array_num))
``````

Sample Output:

```Original array:
1 3 5 7 9
Check the average value of the elements of the said array is a whole number or not:
True

Original array:
2 4 2 6 4 8
Check the average value of the elements of the said array is a whole number or not:
False
```

Explanation:

Here is a breakdown of the above Python code:

• Import Statement:
• The 'array' module is imported with the alias 'arr'.
• Test Function (test function):
• The "test()" function is defined to check if the average value of the elements in an array is a whole number.
• It calculates the sum of array elements and checks if the remainder of the sum divided by the array length is zero.

Flowchart:

Sample Solution-2:

Python Code:

``````# Import the 'array' module as 'arr' alias.
import array as arr

# Define a function 'test' that checks if the average value of array elements is a whole number.
def test(nums):
# Check if the average value of array elements, when divided by array length, has no remainder.
return (sum(nums) / len(nums)) % 1 == 0

# Create an array 'array_num' with integer elements.
array_num = arr.array('i', [1, 3, 5, 7, 9])

# Print the original array elements using a loop.
print("Original array:")
for i in range(len(array_num)):
print(array_num[i], end=' ')

# Check if the average value of array elements is a whole number using the 'test' function.
print("\nCheck the average value of the elements of the said array is a whole number or not:\n", test(array_num))

# Create another array 'array_num' with different integer elements.
array_num = arr.array('i', [2, 4, 2, 6, 4, 8])

# Print the original array elements using a loop.
print("\nOriginal array:")
for i in range(len(array_num)):
print(array_num[i], end=' ')

# Check if the average value of array elements is a whole number using the 'test' function.
print("\nCheck the average value of the elements of the said array is a whole number or not:\n", test(array_num))
``````

Sample Output:

```Original array:
1 3 5 7 9
Check the average value of the elements of the said array is a whole number or not:
True

Original array:
2 4 2 6 4 8
Check the average value of the elements of the said array is a whole number or not:
False
```

Explanation:

Here is a breakdown of the above Python code:

• Import Statement:
• The 'array' module is imported with the alias 'arr'.
• Test Function (test function):
• The "test()" function is defined to check if the average value of the elements in an array is a whole number.
• It calculates the average by dividing the sum of array elements by the array length and checking if the remainder is zero.

Flowchart:

Python Code Editor:

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