Question

Prepare a simple bar graph with the help of given statistical information and answer the questions given below-

Brazil-life expectancy

Years	Life expectancy
1960	54
1970	59
1980	61
1990	65
2000	70
2010	73
2016	75

Questions-

1. What is the interval of years in the data?
2. What is the difference in life expectancy of 1960 and 2016?
3. Write five sentences about the analysis of graph.

Answer 1

1. The interval of the data is 10 years.
2. The difference in life expectancy of 1960 and 2016 is 21 years.
3. i. Life expectancy is an average number of years a person born in a country is expected to live.
   ii. The graph shows that life expectancy has increased in every decade.
   iii. The life expectancy has increased by 21 years from 1960 to 2016.
   iv. The mortality rate has reduced in the last 56 years.
   v. The life expectancy has increased due to improvement in medical facilities, progress in the medical field, access to nutritious food etc.