Modify this code

I want this code to print the average grade letter

import random # Function definition to calculate average def calculate_average(numbers): return sum(numbers) / len(numbers) # Function definition to assign grade acoording to random number def get_letter_grade(number): if number < 60: return "F" elif number < 70: return "D" elif number < 80: return "C" elif number < 90: return "B" else: return "A"

numbers = [] for i in range(5): number = random.randint(50, 100) numbers.append(number) print(f"Random number {i+1}: {number}")

average = calculate_average(numbers) print(f"Average: {average}")

for number in numbers: letter_grade = get_letter_grade(number) print(f"Grade for {number}: {letter_grade}")