Concept
Why is this not a valid probability measure?
Stephen Davies, Ph.D. Version 2.2.2 Through Discrete Mathematics A Cool Brisk Walk / Chapter 1
"I told you that Pr({Ben})=.1, Pr({Chad})=.2, Pr({Grover})=.3, and Pr({Tim})=.3. Would you believe me? Better not. This is not a valid probability measure, since the sum of the probabilities of all the outcomes, Pr( Ω ), is not equal to 1."
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