The population of China was 1.2 billion in 2002 and 1.34 billion in 2009. Determine the population in 2020

Question

Step By step

Answer 1

Assumes linear model

 

slope is (1.34-1.2)/(2009-2002)

 

            = 0.14/7

 

            = 0.02

 

 

B = y - mx = 1.2 - (0.02)(2002)

 

                 =  - 38.84

 

y = 0.02 * X - 38.84

 

For x = 2020, y = 1.56

 

1.56 billion in 2020