Code

def display_average(students):
    for student in students:
        score = 0
        count = 0
        for i in range(1, len(students[student])):
            score = score + students[student][i]
            count += 1
        print(f'Average of {students[student][0]} is {score/count}')

def main():
   students = { 'CCU101': ['Anna', 88.5, 98.5, 78, 85, 92.5],
   'CCU102': ['Alex', 98,91,90,92,88],
   'CCU103': ['Bob', 99.5, 98.5, 96, 96, 89.5],
   }
   display_average(students)

if __name__=='__main__':
    main()