If all major league baseball pitchers were to learn a new,highly effective pitch called the "slipper," this would
A) leave the earned run average of pitchers unchanged but alter the rankings.
B) raise batting averages.
C) increase fan attendance.
D) lower the earned run average of pitchers,but leave the rankings unchanged.
E) increase the number of home runs.

Question

Quizplus · Accepted Answer

Introducing a new, highly effective pitch like the "slipper" would likely lower the earned run average (ERA) of pitchers because batters would have a more difficult time hitting it. However, since all pitchers would be learning this new pitch, the rankings (i.e. which pitchers are the most effective) would likely remain relatively unchanged. This new pitch would also not necessarily lead to higher batting averages or more home runs. There is no indication that it would increase fan attendance either.

If All Major League Baseball Pitchers Were to Learn a New,highly