It is hard to get the perfect number, by the time you read these answers, a few hundred phones would have been sold.. It was around 800 million Android users and 300 million iOS users in 2013.. Apple reached 1 billion phones in November of 2014.. Evans estimates that Apple paid iOS app developers $10 billion in the last 12 months vs. the $5 billion Google paid Android developers.
It can also be used in socioeconomic research. Theoretical probability is also used in certain research and businesses. 1.Experimental probability measures the ratio of outcome vs. attempt while theoretical probability measures the favorable or wanted outcome vs. the possible outcome.
Theoretical physics. Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain and predict natural phenomena. This is in contrast to experimental physics, which uses experimental tools to probe these phenomena. The advancement of science generally depends on the interplay between experimental studies and theory. In some cases, theoretical physics adheres to standards of mathematical rigor while giving little weight to experime