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**1. An airline's flights have a mean arrival time of 5.8 min late with standard deviation of 2.1 min. What would be the appropriate x - scale for a histogram?**

**2. http://www.mathsrevision.net/gcse/sdeviation2.gif [Broken]**

**3. I tried to do this problem, but I couldn't think of anyway to find the x - scale. Can you please explain to me how? Thank You!**

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