${\overline{x}}_{w_A}=\frac{3\cdot 4+3\cdot 2+2\cdot 3+2\cdot 4+1\cdot 5}{3+3+2+2+1}=$

$=\frac{12+6+6+8+5}{11}=\frac{37}{11}\approx 3,36$

${\overline{x}}_{w_H}=\frac{3\cdot 5+3\cdot 4+2\cdot 3+2\cdot 2+1\cdot 4}{3+3+2+2+1}=$

$=\frac{15+12+6+4+4}{11}=\frac{41}{11}\approx 3,73$

${\overline{x}}_A=\frac{\stackrel{\text{suma ocen Ani}}{\overbrace{4+2+3+4+5}}}{\underset{\text{liczba ocen Ani}}{\underbrace{5}}}=\frac{18}{5}=3,6$

${\overline{x}}_H=\frac{\stackrel{\text{suma ocen Hani}}{\overbrace{5+4+3+2+4}}}{\underset{\text{liczba ocen Hani}}{\underbrace{5}}}=\frac{18}{5}=3,6$