Question

Вычисли среднее арифметическое чисел:
1) 12, 17, 18, 20, 28;
2) 260, 290, 200, 150;
3) 64, 92, 15, 7, 39, 303, 100, 60;
4) 10, 20, 30, 40, 50, 60, 70, 80, 90.

Answer 1

1) (12 + 17 + 18 + 20 + 28) : 5 = 19
2) (260 + 290 + 200 + 150) : 4 = 225
3) (64 + 92 + 15 + 7 + 39 + 303 + 100 + 60) : 8 = 85
4) (10 + 20 + 30 + 40 + 50 + 60 + 70 + 80 + 90) : 9 = 50