Using scatter diagrams to investigate trends

• What is health defined as in the study material?

  Health is the state of physical and mental well-being.
• How do factors affect physical and mental health?

  Factors work together and affect physical and mental health.
• What is a disease defined as?

  A disease is a disorder that affects an organism's body, organs, tissues, or cells.
• What are the different types of diseases mentioned in the study material?

  • Cancer and carcinogens
  • Smoking and cardiovascular disease
  • Effects of alcohol on organs and unborn babies
  • Cardiovascular disease and type 2 diabetes
• What is the purpose of using scatter diagrams?

  Scatter diagrams investigate trends and correlations between two variables.
• What does a close correlation indicate?

  A close correlation indicates a relationship between two sets of data.
• Why are scatter graphs useful for analyzing data?

  Scatter graphs are useful for analyzing large amounts of data to investigate trends.
• What types of correlations can scatter graphs illustrate?

  Scatter graphs can illustrate correlations between disease and lifestyle choices or environmental conditions.
• What landmark scientific paper is mentioned in the study material?

  The paper by Ken Carroll from 1975 is mentioned.
• What does each data point in the scatter graph represent?

  Each data point represents a piece of data from a different country.
• What trend is shown in the data regarding animal fat intake and breast cancer?

  The data shows a clear trend between animal fat intake and death rates from breast cancer.
• What can be added to a scatter graph if a correlation is shown?

  A line of best fit can be added to illustrate the trend.
• What are the steps involved in using scatter diagrams to investigate trends?

  1. Collect large amounts of data.
  2. Plot the data on a scatter graph.
  3. Analyze the correlation between variables.
  4. Add a line of best fit if a correlation is present.