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Past records show that 80% of the operations performed by a certain doctor were successful. If the doctor performs 4 operations in a day,

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Past records show that 80% of the operations performed by a certain doctor were successful. If the doctor performs 4 operations in a day, what is the probability that at least 3 operations will be successful?

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The probability that the operations performed are successful is = 0.8

The probability that at least three operations are successful is = P(3) + P(4)

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