The probability that Roberto throws a baseball in the strike zone on one pitch is 0.72. Roberto throws a baseball 3 times in a row.
Find the probability that Roberto throws at least one of the baseballs in the strike zone. Show your work or explain your answer.
The probability of Roberto not throwing in the strike zone on one pitch is 1-0.72=0.28.
Therefore, the probability of Roberto not throwing in the strike zone on all three pitches is 0.28*0.28*0.28=0.021952.
The probability of Roberto throwing at least one pitch in the strike zone is the complement of the probability of not throwing any pitches in the strike zone, which is 1-0.021952=0.978048.
Therefore, the probability that Roberto throws at least one of the baseballs in the strike zone is 0.978048 or approximately 0.978.