[Solution Library] Smart phones and life expectancy A survey of the world's nations in 2014 shows a strong positive correlation between percentage of the
Question: Smart phones and life expectancy A survey of the world's nations in 2014 shows a strong positive correlation between percentage of the country using smart phones and life expectancy in years at birth.
- Does this mean that smart phones are good for your health?
- What might explain the strong correlation?
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