The band is composed of guitarist and lead vocalist Chad Kroeger, guitarist, keyboardist and backing vocalist Ryan Peake, bassist Mike Kroeger, and drummer Daniel Adair. The band went through a few drummer changes between 1995 and 2005, achieving its current form when Adair replaced drummer Ryan Vikedal.
In science, a prediction is the expected outcome if a hypothesis is accurate. A prediction may also be a forecast, as with weather. It can also be a prophecy or other augury of the future. Various psychics, clairvoyants and fortune tellers predict the future, as do astrologers. In science, a prediction is the expected outcome if a hypothesis is accurate.
A hypothesis is a specific, testable prediction. It describes in concrete terms what you expect will happen in a certain circumstance. Your hypothesis may have been, 'If not studying lowers test performance and I do not study, then I will get a low grade on the test.'.