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Mathematics, 14.10.2019 10:50 BigCra
The scores on a certain test are normally distributed with a mean score of 69 and a standard deviation of 4. what is the probability that a sample of 90 students will have a mean score of at least 69.4216? \
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The scores on a certain test are normally distributed with a mean score of 69 and a standard deviati...
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