Question: A certain standardized test's math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 119 complete parts a through

A certain standardized test's math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 119 complete parts a through c

(a) What percentage of standardized test scores is between 158 and 872? % (Round to one decimal place as needed.) (b) What percentage of standardized test scores is less than 158 or greater than 872? % (Round to one decimal place as needed.) (c) What percentage of standardized test scores is greater than 753? % (Round to one decimal place as needed.)

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