1200 freshman at NC State took a biology test. The scores were normally distributed with a mean of 75 and a standard deviation of 8. Label the mean and three standard deviations from the mean. Use the Empirical Rule (68; 95; 99.7) * What percentage of scores are between 67 and 91? * What percentage of scores are between 83 and 99? * Approximately how many biology students scored between 67 and 83? * Approximately how many biology students scored greater than 83?

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