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The upper arm length of females over 20 years old in the United States is approximately Normal with mean 35.9 centimeters (cm) and standard deviation 2.2 cm. Use the 68-95-99.7 rule to answer the following questions. NOTE: The numerical values in this problem have been modified for testing purposes.

(a) What range of lengths (± 0.1 cm) covers almost all (99.7%) of this distribution?

Reference no: EM131846589

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