The following table shows the distribution of murders by type of weapon for murder cases in a Probability Weapon Handgun Rifle Shotgun Unknown firearm particular country over the past 12 years....

Extracted text: The following table shows the distribution of murders by type of weapon for murder cases in a Probability Weapon Handgun Rifle Shotgun Unknown firearm particular country over the past 12 years. Complete parts (a) through (e). 0.472 0.024 0.034 0.144 Knives 0.133 Hands, fists, etc. 0.055 Other 0.138 (a) Is the given table a probability model? Why or why not? O A. No; the probability of all events in the table is not greater than or equal to 0 and less than or equal to 1. O B. No; the sum of the probabilities of all outcomes does not equal 1. O C. No; the probability of all events in the table is not greater than or equal to 0 and less than or equal to 1, and the sum of the probabilities of all outcomes does not equal 1. D. Yes; the rules required for a probability model are both met. (b) What is the probability that a randomly selected murder resulted from a rifle or shotgun? P(rifle or shotgun) = (Type a decimal rounded to three decimal places as needed.)