McEwing has the higher batting average.

Complete Solution:
Both players had 45 hits in 132 at bats. Then, with the statistics from the next at bats, McEwing's average is 49 ÷ 137, or about .358 while Lieberthal's batting average is 48 ÷ 135, or about .356.

One way to make sense of this unexpected result is to imagine that McEwing gets 3 hits in his first 3 at bats while Lieberthal also gets 3 hits in 3 at bats. Then the pair is still tied. During McEwing's last 2 at bats, he gets 1 hit. This average of 1 for 2, or .500 is better than his current average, so his batting average goes up.

 Player At Bats Hits Batting Average Next At Bats Next Hits New Average M. Lieberthal 132 45 45 ÷ 132 = .341 3 3 48 ÷ 135 = .356 J. McEwing 132 45 45 ÷ 132 = .341 5 4 49 ÷ 137 = .358

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