The following table shows the distribution of murders by type Weapon of weapon for murder cases in a particular country over the Handgun past 12 years. Complete parts (a) through (e). Rifle *** (a) Is the given table a probability model? Why or why not? Shotgun Unknown firearm Knives Hands, fists, etc. Other Probability 0.471 0.022 0.033 0.145 0.133 0.055 0.141

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10:27
K
The following table shows the distribution of murders by type Weapon
of weapon for murder cases in a particular country over the Handgun
past 12 years. Complete parts (a) through (e).
Rifle
(a) Is the given table a probability model? Why or why not?
Vo) 1
LTE2
S View an example
Get more help.
Shotgun
Unknown firearm
|||
Knives
Hands, fists, etc.
Other
O
..ll 4G ll
OA. 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.
OB. No; the probability of all events in the table is not greater than or equal to 0 and less than or equal to 1.
C.
No; 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) = 0.055 (Type a decimal rounded to three decimal places as needed.)
Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice.
(c) What is the probability that a randomly selected murder resulted from a handgun, rifle, or shotgun?
P(handgun, rifle, or shotgun) =
(Type a decimal rounded to three decimal places as needed.)
Probability
0.471
0.022
0.033
A. If 1000 murders were randomly selected, we would expect about 55 of them to have resulted from a rifle or
shotgun.
B. If 1000 murders were randomly selected, exactly of them would have resulted from a rifle or shotgun.
0.145
0.133
0.055
0.141
Clear all
93%
D
Check answer
Transcribed Image Text:10:27 K The following table shows the distribution of murders by type Weapon of weapon for murder cases in a particular country over the Handgun past 12 years. Complete parts (a) through (e). Rifle (a) Is the given table a probability model? Why or why not? Vo) 1 LTE2 S View an example Get more help. Shotgun Unknown firearm ||| Knives Hands, fists, etc. Other O ..ll 4G ll OA. 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. OB. No; the probability of all events in the table is not greater than or equal to 0 and less than or equal to 1. C. No; 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) = 0.055 (Type a decimal rounded to three decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. (c) What is the probability that a randomly selected murder resulted from a handgun, rifle, or shotgun? P(handgun, rifle, or shotgun) = (Type a decimal rounded to three decimal places as needed.) Probability 0.471 0.022 0.033 A. If 1000 murders were randomly selected, we would expect about 55 of them to have resulted from a rifle or shotgun. B. If 1000 murders were randomly selected, exactly of them would have resulted from a rifle or shotgun. 0.145 0.133 0.055 0.141 Clear all 93% D Check answer
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