In a random sample of 645 toner cartridges, the mean number of pages a toner cartridge can print is 4300 and the standard deviation is 345 pages.

In a random sample of 645 toner cartridges, the mean number of pages a toner cartridge can print is 4300 and the standard deviation is 345 pages. Assume the distribution of data is normally distributed.

            What percent of the sample data should you expect to be more than 1 standard deviation away from the mean?

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