Ответ:
- \(\frac{150+200+130}{3}=\frac{480}{3}=160\).
- \(\frac{6+4.5+2.7}{3}=\frac{13.2}{3}=4.4\).
- \(\frac{13.5+18.8}{2}=\frac{32.3}{2}=16.15\).
- \(\frac{21.8+43.2+1.06}{3}=\frac{66.06}{3}=22.02\).
- \(\frac{7.6+8.8+15.4+17.8}{4}=\frac{49.6}{4}=12.4\).
- \(\frac{8.45+12.15+3.05+6.35}{4}=\frac{30}{4}=7.5\).
- \(\frac{88.2+13.7+31.6+54.1+12.4}{5}=\frac{200}{5}=40\).
Ответ: 1) 160; 2) 4,4; 3) 16,15; 4) 22,02; 5) 12,4; 6) 7,5; 7) 40.
