student_score=[78, 65, 92, 78, 90, 45, 83, 57, 96, 56]
sum_score=0
for score in student_score:
	sum_score+=score
print(f'总成绩为：{sum_score}')
avreage_score=sum_score/len(student_score)
print(f'平均成绩为：{avreage_score}')
avreage_count=0
for score in student_score:
	if score >= avreage_score:
		avreage_count+=1
print(f'大于等于平均成绩的个数{avreage_count}')