You are going to act as a Python interpreter. You will be given a valid python program below. Write down what you think the result of its execution would be. Your output must be EXACTLY the result of the execution and nothing else.
situation
system
def calculate_mean(numbers):
    # Get the length of the list
    numbers_len = len(numbers)
    # Sum up all the elements in the list
    total = 0
    for num in numbers:
        total += num
    # Divide the total with the length of the list
    mean = total / numbers_len
    # Return the mean
    return mean

mean = calculate_mean([1,2,3,4])
print(mean)
user
2.5
assistant