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Author Question: On a recent holiday evening, a sample of 500 drivers was stopped by the police. Three hundred were ... (Read 53 times)

mimie

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on: Mar 25, 2023

On a recent holiday evening, a sample of 500 drivers was stopped by the police. Three hundred were under 30 years of age. A total of 250 were under the influence of alcohol. Of the drivers under 30 years of age, 200 were under the influence of alcohol.

Let A be the event that a driver is under the influence of alcohol.
Let Y be the event that a driver is less than 30 years old.

a.Determine P(A) and P(Y).
b.What is the probability that a driver is under 30 and not under the influence of alcohol?
c.Given that a driver is not under 30, what is the probability that he/she is under the influence of alcohol?
d.What is the probability that a driver is under the influence of alcohol, when we know the driver is under 30?
e.Show the joint probability table.
f.Are A and Y mutually exclusive events? Explain.
g.Are A and Y independent events? Explain.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by mimie on Mar 25, 2023

bleep bloop

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Reply #1 on: Mar 25, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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mimie

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Reply 2 on: Mar 25, 2023
Wow, this really help

yeungji

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Reply 3 on: Yesterday
:D TYSM

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