Step 1 :The question is asking for the probability that a randomly selected murder resulted from a handgun, rifle, or shotgun. This can be calculated by adding the probabilities of each of these events.
Step 2 :Given probabilities are: handgun = 0.473, rifle = 0.022, shotgun = 0.035
Step 3 :Add these probabilities: 0.473 + 0.022 + 0.035 = 0.53
Step 4 :Final Answer: The probability that a randomly selected murder resulted from a handgun, rifle, or shotgun is \(\boxed{0.53}\)