Question

Weapon	Probability
Handgun	0.478
Rifle	0.022
Shotgun	0.032
Unknown firearm	0.149
Knives	0.131
Hands, fists, etc	0.055
Other	0.133

(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?

​(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.

A. If 1000 murders were randomly​ selected, exactly of them would have resulted from a rifle or shotgun.

B. If 1000 murders were randomly​ selected, we would expect about of them to have resulted from a rifle or shotgun.

(c)  What is the probability that a randomly selected murder resulted from a​ handgun, rifle, or​ shotgun?

Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice.

A. If 1000 murders were randomly​ selected, we would expect about of them to have resulted from a​ handgun, rifle, or shotgun.

B. If 1000 murders were randomly​ selected, exactly of them would have 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?

​(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.

A. If 1000 murders were randomly​ selected, we would expect about of them to be have resulted from a weapon other than a gun.

B. If 1000 murders were randomly​ selected, exactly of them would have resulted from a weapon other than a gun.

(e)  Are murders with a shotgun​ unusual?

Answer 1

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