Which one of these pictures is not like the others? Explain what makes it different using ratios.

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

The data set represents the ages of players in a chess club. 27, 34, 38, 16, 22, 45, 54, 60. what is the mean absolute deviation of the data set?