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Show a strong positive correlation for given requirements

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Reference no: EM131714083

Qusetion: Cellular telephones and life expectancy. A survey of the world's nations in 2004 shows a strong positive correlation between percentage of the country using cell phones and life expectancy in years at birth.

a) Does this mean that cell phones are good for your health?

b) What might explain the strong correlation?

Reference no: EM131714083

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