Millionaires are Baby Boomers (or Older) For most Americans, incomes tend to rise with age and experience. Thus, it is not surprising that in 2009, 80 percent of millionaires were older than age 45 and close to half of all millionaires (46 percent) were older than age 55.
Theory. A scientific theory summarizes a hypothesis or group of hypotheses that have been supported with repeated testing. A theory is valid as long as there is no evidence to dispute it. Therefore, theories can be disproven.
A hypothesis is a question or an idea that a scientist tries to answer by performing an experiment. If the data derived from the experiment is compelling enough, the hypothesis becomes a theory. Scientists accept theories as adequate explanations for phenomena. This is in stark contrast to the use of the word theory in a non-scientific sense.