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0 13 2 15 30 34 13 13 59 20 10 A score of 315 is 0 34 13 10 13 59 2 15 20 30 Use the figure to help you answer the following questions The National Assessment of Educational Progress NAEP is a nationwide assessment of students proficiency in nine subjects mathematics reading writing science the arts civics economics geography and US history The main NAEP assessments are conducted annually on samples of students from grades 4 8 and 12 0 13 In 2003 the mathematics scores for male students had a mean of 278 with a standard deviation of 37 Assume that these scores are normally distributed with the given mean and standard deviation A score of 167 is below the mean while a score of 389 is means that the percentage of male students with scores between 167 and 389 is You can infer that 97 72 of the male students have scores above above the mean This above the mean As a result the percentage of male students with scores below 315 is

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