prog8_10.py

observed = [6.7775, 6.7947, 7.4065, 9.2553, 7.7707]
total = 0
count = 0
for value in observed:
    total += round(value, 2)
    count += 1
average = total / count
print(f"平均は{average:.2f}です。")

# プログラム8-10（有効数字）