Based upon extensive data from a national high school educational testing program, the mean score of national test scores for mathematics was found to be 614 and the standard deviation of national test scores for mathematics was found to be 192 points. What is the probability that a random sample of 256 students will have a mean score of more than 628? Less than 600?

the probability that a random sample of 256 students will have a mean score of more than 619 is.....(the correct answer for this question is 0.3247)

The probability that a random sample of 256 students will have a mean score of less than 601 is....( the correct answer for this question is 0.1186)

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