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Suppose that a test marks are normally distributed with a mean of 64 points and a standard deviation of 12 points.If a random sample of

Suppose that a test marks are normally distributed with a mean of 64 points and a standard deviation of 12 points.If a random sample of 49 students is collected, what is the probability that the mean of the sample is greater than 68 points?

Please give your answer correctly rounded to two decimal places.

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