help with college math-probabilities ?
choose your pick- please explain how to solve these
回答 (1)
6a ... 7:5 prob = 7/12
b. prob Cubs win = 1/201
7. odds a: b >> means success = a and failure = b
prob = success / total outcomes = success / (success + failure)
prob = a / (a+b)
Now you try the last ... tread in your book .. what is expected value .. then apply the definitions.
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