Carcass wrote:
In 2007, each subscriber spent an average of approximately 1,210 minutes per year on the website. In 2008, each subscriber spent an average of approximately 1,400 minutes per year on the website. For 2007 and 2008 combined, what was the average number of minutes per year that a subscriber spent on the website?
The answer should be \(1317.71\) minutes/yr
Subscribers in 2008 = 72 Mill.
Subscribers in 2007 = 55 Mill.
Average = \(\frac{{(1210)(55)+(1400)(72)}}{(55+72)} = \frac{167350}{127}=1317.71\)