How Did The Worst 15 Countries (Low Percentage Wise) Improve Over Time? From 2000 - 2011?

Reduce By Two Thirds, The Under 5 Child Mortality Rate

Questions to Consider: 1. Why do the percents vary more in 2011 compared to 2000? What does this tell us about that country's development? 2. What do you think caused Nauru to have 99% when it had 7% before? 3. What does this data tell you, and what does it not tell you?