Probability 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 Handgun Rifle 0.474 0.026 Shotgun Unknown firearm 0.034 0.144 Knives 0.132 Hands, fists, etc. 0.055 Other 0.135 U D. Tes, uie ruies requireu ior a provavimy mouer dre DOUT met. (b) What is the probability that a randomly selected murder resulted from a rifle or shotgun? P(rifle or shotgun) = 0.060 (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. O A. If 1000 murders were randomly selected, exactly of them would have resulted from a rifle or shotgun. OB. If 1000 murders were randomly selected, we would expect about 60 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? P(handgun, rifle, or shotgun) = 0.534 (Type a decimal rounded to three decimal places as needed.)

Probability 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 Handgun Rifle 0.474 0.026 Shotgun Unknown firearm 0.034 0.144 Knives 0.132 Hands, fists, etc. 0.055 Other 0.135 U D. Tes, uie ruies requireu ior a provavimy mouer dre DOUT met. (b) What is the probability that a randomly selected murder resulted from a rifle or shotgun? P(rifle or shotgun) = 0.060 (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. O A. If 1000 murders were randomly selected, exactly of them would have resulted from a rifle or shotgun. OB. If 1000 murders were randomly selected, we would expect about 60 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? P(handgun, rifle, or shotgun) = 0.534 (Type a decimal rounded to three decimal places as needed.)

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Description: The following table shows the distribution of murders by type of weapon for murder cases in aparticular country over the past 12 years. Complete parts (a) through (e).WeaponProbabilityHandgun0.474Rifle0.026Shotgun0.034Unknown firearm0.144Knives0.132

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.

Topic Video

Question

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
0.474
Rifle
0.026
Shotgun
0.034
Unknown firearm
0.144
Knives
0.132
Hands, fists, etc.
0.055
Other
0.135
Tes, he Tuies Tequireu for a prOpabimy mIoUel are pOLT MEt.
(b) What is the probability that a randomly selected murder resulted from a rifle or shotgun?
P(rifle or shotgun) = 0.060 (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.
O 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 60 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?
P(handgun, rifle, or shotgun) = 0.534
%3D
(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 534 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?
P(weapon other than a gun) =
(Type a decimal rounded to three decimal places as needed.)

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