Final answer:
The probability that the boxer will lose their next fight is 0.06.
Step-by-step explanation:
To find the probability that the boxer will lose their next fight, we need to consider the total number of fights and the number of fights they won. Since the boxer has fought 50 times and won 47 fights, the probability of winning is 47/50. To find the probability of losing, we subtract the probability of winning from 1, since the sum of the probabilities of all possible outcomes must be 1. Therefore, the probability of losing the next fight is 1 - 47/50 = 3/50 = 0.06.