In a study of helicopter usage and patient survival, among the 53316 patients tr

Question

In a study of helicopter usage and patient survival, among the 53316 patients transported by helicopter, 294 of them left the treatment center against medical advice and the other 53022 did not leave against medical advice. If 50 of the subjects transported by helicopter are randomly selected without replacement, what is the probability that none of them left treatment center against medical advice.



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Explanation / Answer

Sample Proportion = 294/53316 = 0.005514

P(x =0)

Use excel function

BINOM.DIST(0,50,0.005514,FALSE)

= 0.758 ( Rounded to three decimal places)

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