Criterion D Summative Assessment - Internet Usage

Internet Revolution

The origins of the Internet date back to research commissioned by the United States federal government in the 1960s to build robust, fault-tolerant communication via computer networks. Internet use grew rapidly in the West from the mid-1990s and from the late 1990s in the developing world. In the two decades since then, Internet use has grown 100-times, measured for the period of one year, to over one third of the world population (Wikipedia)
The Internet user per 100 people each year for the countries of Norway and Saudi Arabia, since 1990, are given in the table below:

Use the following Geogebra App for all of your modelling and calculations

Question 1

Determine a suitable model that represents the Internet usage in Norway. Clearly state the function below and explain the variables used.

Question 2

Use your model to predict the number of users in Norway in 2020.

Question 3

Discuss and determine the growth model that best represents the Saudi Arabian data set. Explain comprehensively your computed model and justification for selecting the model. 

Question 4

In 2016 Saudi Arabia had 64.72 users per 100 people. Comment on your model and how well it fares against the actual number of users. Show work and discuss the difference.

Question 5

Using your models will the number of Internet users in Saudi Arabia ever surpass the those in Norway? If so, which year?

Question 6

Justify the accuracy of your predictions and comment on the limitations of your models.