Grey wolf population and Iphone sales Discussions

I need two versions from this discussion one for me and one from my friend. It must be 100% different we are in the same class and the same teacher.

Describe a time series you find interesting (examples might include any sports team’s or athlete’s record over time, any company’s sales or stock prices, any country’s population…). Why should people care about this time series? Why do you? Where do you predict this time series is headed?