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Suppose that the semester test marks in STTN125 follows a normal distribution with mean 50% and standard deviation 5%. What is then the probability that

Suppose that the semester test marks in STTN125 follows a normal distribution with mean 50% and standard deviation 5%. What is then the probability that a randomly selected student will have a mark of at least 55%? (round your answer correct to 4 decimal places)

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