Question: The Excel sheet Baseball contains information about a team which is using an automatic pitching machine. If the machine is correctly setup and properly adjusted, it will strike 85 percent of the time. If it is incorrectly set up, it will strike only 35 percent of the time. Past data indicates that 75 percent of the setup of the machine is correctly done. After the machine has been set up, at batting practice one day, it throws three strikes on the first three pitches. What is the revised probability that has setup done correctly?
Event P(Event) P(1Strike/Event)
Correct 0.75 0.85
Incorrect x 0.35