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A certain standardized test's math scores have a bell-shaped distribution with a mean of 520 and a standard deviation of 105. Complete parts (a) through (c). (a) What percentage of standardized test scores is between 205 and 835? % (Round to one decimal place as needed.) (b) What percentage of standardized test scores is less than 205 or greater than 835? % (Round to one decimal place as needed.) (c) What percentage of standardized test scores is greater than 730? % (Round to one decimal place as needed.)​

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