The following table shows the distribution of murders by type of weapon for murder cases in a particular country over the past 12 years. Complete parts (a) through (e).
Weapon | Probability |
Handgun | 0.476 |
Rifle | 0.024 |
Shotgun | 0.033 |
Unknown firearm | 0.149 |
Knives | 0.134 |
Hands,fists,etc | 0.055 |
Other | 0.129 |
(a) Is the given table a probability model? Why or why not?
(b) What is the probability that a randomly selected murder resulted from a rifle or shotgun?
(c) What is the probability that a randomly selected murder resulted from a handgun, rifle, or shotgun?
(d) What is the probability that a randomly selected murder resulted from a weapon other than a gun?
(e) Are murders with a shotgun unusual?
TOPIC:Probability.
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