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In: Statistics and Probability

In a study of helicopter usage and patient​ survival, among the 43,235 patients transported by​ helicopter,...

In a study of helicopter usage and patient​ survival, among the 43,235 patients transported by​ helicopter, 170 of them left the treatment center against medical​ advice, and the other 43,065 did not leave against medical advice. If 40 of the subjects transported by helicopter are randomly selected without​ replacement, what is the probability that none of them left the treatment center against medical​ advice?  ​(Round to three decimal places as​ needed.)

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