Answer: The probability that a worker will choose a bolt that is not defective is equal to 5253/5255.
Explanation:
P(A)+P(A')=1, meaning that the probability of the event plus the probability of the complement of the event (the probability of the event not occurring) is equal to 1.
Rearranging the equation gives us 1-P(A)=P(A');
P(A)=2/5255;
so1-2/5255=5253/5255.