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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 40 minutes late,what is the probability that it was service A?
Control Group
A group in a scientific experiment where the experimental procedure is applied, except for the variable being tested, serving as a comparison to determine the effect of the treatment.
External Validity
The ability to extend the outcomes of a research study to different environments and various people.
Internal Validity
Refers to the extent to which a study can establish a causal relationship between its variables, eliminating alternative explanations.
Nomothetic Insights
Generalizations or laws that apply to large numbers of individuals, often used in the context of psychology to identify universal traits or behaviors.
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