44. Social Website Popularity: Delicious The following table shows the popularity of Delicious among social media sites
as rated by StatCounter. com (t is the number of years since
the start of 2008):
1
2
3
4
5
Yeart
(year since start of 2008)
Delicious Popularity p(t)
(%)
0.4
0.2
0.1
0.05 0.02
a. Represent p graphically, and then use your graph to
estimate p(3.5). Interpret your answer.
b. One of the following models fits the data exactly.
Which model is it?
(A) p(t) = 0.8(2)
(B) p(t) = 0.8(2)
(C) p(t) = 0.0212 - 0.2t + 0.6
(D) p(t) = -0.02.2 + 0.2 - 0.6
-