The rules of the game have been changed. The objective of the game now is to flick the nickel as close as possible to the goal line without going over the line. Any flick that causes the nickel to go past the line automatically disqualifies the player. Still, the data should be recorded as earlier, with positive and negative values, so that all the flicks can be analyzed.

a. Plot your distances from the goal line against the number of the trial. What pattern do you see?

b. Compare your plot with those of other students in the class. In what ways do the plots differ?

c. What pattern in these plots shows improvement over time?