Messenger Service ​ Three Messenger Services Deliver to a Small Town in Small

question 19

Essay

Messenger Service ​
Three messenger services deliver to a small town in Oregon.Service A has 60% of all the scheduled deliveries,service B has 30%,and service C has the remaining 10%.Their on-time rates are 80%,60%,and 40% respectively.Define event O as a service delivers a package on time. ​ ​
-{Messenger Service Narrative} If a package was delivered on time,what is the probability that it was service B?

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Definitions:

Security Returns

The gains or losses from investing in a financial security, usually expressed as a percentage of the investment's initial cost.

Macro Events

Large-scale events that affect the broad economy or financial markets, including political changes, natural disasters, or widespread economic shifts.

Firm-Specific Events

Events that affect a particular company directly, such as earnings reports, mergers, or product launches, which can impact the company's stock price independent of market trends.

Portfolio Risk

The level of uncertainty or potential financial loss inherent in an investment portfolio.