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A surgical technique is performed on twelve patients. You are told there is 70 chance of success. Find the probability that the surgery is successful for exactly 9 patients.?
Wiki User
∙ 7y ago
It is 0.2397, approx.
Wiki User
∙ 7y ago
To find the probability that exactly 9 patients are successful, we can use the binomial probability formula. The formula is P(x=k) = (n choose k) * p^k * (1-p)^(n-k), where n is the number of trials, k is the number of successful outcomes, and p is the probability of success. Plugging in the values, we have P(x=9) = (12 choose 9) * 0.7^9 * (1-0.7)^(12-9). Calculate this expression to find the probability that exactly 9 patients are successful.
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