• Cholesterol and smokingDownload .TXT file Open in Data Desk ?Link
  • Methods: Boxplots
  • Source: unknown
  • Number of Cases: 43
  • Story:

    A study examined the health risks
    of smoking measured the cholesterol levels of people who had
    smoked for at least 25 years and people of similar ages who
    had smoked for no more than 5 years and then stopped

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