Question

The table below shows a baseball player’s batting average batting left and right versus left- and right-handed pitches
Assume these numbers are the probabilities that he will get a hit during an “at bat.”

On average, when he bats left 100 times, how many more hits will he get when he faces left-handed pitchers as opposed to right-handed pitchers?


Left-handed pitchers Right-handed pitchers
Bats left 0.285 0.175
Bats right 0.215 0.250

1
2
11
22