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Mathematics 8 Online
OpenStudy (katecc379):

A shipment of racquetballs with a mean diameter of 60 mm and a standard deviation of 0.9 mm is normally distributed. By how many standard deviations does a racquetball with a diameter of 58.2 mm differ from the mean?

OpenStudy (katecc379):

@JoannaBlackwelder

OpenStudy (joannablackwelder):

We get to one std dev from the mean by adding and subtracting the std dev from the mean. Can you find those values first?

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