The graph above depicts the performance ratings of two sports teams A and B in five different seasons
In the last five seasons, what was the difference in the average performance ratings between Team B and Team A?
Average performance rating of Team B = 7+9+1+9+65=325\frac{7+9+1+9+6}{5} = \frac{32}{5}57+9+1+9+6=532 = 6.4
Average performance rating of Team A = 5+3+6+10+25=265\frac{5+3+6+10+2}{5} = \frac{26}{5}55+3+6+10+2=526 = 5.2
∴ The difference in the average performance ratings between Team B and Team A = 6.4 - 5.2 = 1.2
