Data Presentation

Data Presentation

1. Item 2

   • P2- Population age structure indicators
     • Comparative bar chart (no)
       • Too time consuming
       • Can't identify a pattern
       • Too many countries
     • Compound bar graph (no)
       • Easy to read
       • Best graphically
       • Hard to compare
     • Chloropeth map (yes)
       • Easy to see a pattern
       • Useful to identify outliers
       • Shows location
       • Young and old better than total (more detail)
       • It doesn't show variation within the country and doesn't show individual statistics of each country.
         • Lacks detail
   • P4- Demographic balance
     • NOT BIRTH RATE OR DEATH RATE
       • Criticism- not proportional
     • Scatter graph
       • Used to compare two sets of data
       • Shows correlation
       • Easy to construct
       • Anomalies stand out
       • Too many points make it unreadable
     • Chloropeth map
     • Comparative divergent bar chart

2. Item 3- student's work

   • Figure P7
     • Scatter graph
     • Too many pairs
       • 0.629
         • This isn't very close to 1. This means the correlation is not very strong.
           • However, it is statistically significant.
       • If repeat with the countries with population over 10 million we get a strong correlation.
         • 0.712
         • 12 pairs