# Python Exercise: Calculate the sum and average of n integer numbers

## Python Conditional: Exercise - 42 with Solution

Write a Python program to calculate the sum and average of n integer numbers (input from the user). Input 0 to finish.

**Pictorial Presentation:**

**Sample Solution-1:**

**Python Code:**

```
# Display a prompt asking the user to input integers to calculate their sum and average,
# specifying that entering 0 will exit the program
print("Input some integers to calculate their sum and average. Input 0 to exit.")
# Initialize variables for count, sum, and the first number to 1
count = 0
sum = 0.0
number = 1
# Iterate until the user inputs 0
while number != 0:
# Prompt the user to input a number and convert it to an integer
number = int(input(""))
# Add the entered number to the sum
sum = sum + number
# Increment the count of entered numbers
count += 1
# Check if no numbers were entered
if count == 0:
print("Input some numbers")
else:
# Calculate and display the average and sum of the entered numbers
print("Average and Sum of the above numbers are: ", sum / (count-1), sum)
```

Sample Output:

Input some integers to calculate their sum and average. Input 0 to exit . 15 16 12 0 Average and Sum of the above numbers are: 14.333333333333334 43.0

**Flowchart : **

**Sample Solution-2:**

Calculates the average of two or more numbers.

Use sum() to sum all of the args provided, divide by len().

**Python Code:**

```
# Define a function 'average' that takes in a variable number of arguments using *args
def average(*args):
# Calculate the sum of the arguments using the built-in 'sum' function, starting from 0.0 as the initial value
# Divide the sum by the number of arguments using 'len(args)' to compute the average
return sum(args, 0.0) / len(args)
# Print the average of the elements within the list [1, 2, 3, 4] by unpacking it with '*'
print(average(*[1, 2, 3, 4]))
# Print the average of the numbers 1, 2, and 3 by passing them directly as arguments to the 'average' function
print(average(1, 2, 3))
```

Sample Output:

2.5 2.0

**Flowchart : **

**Python Code Editor: **

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