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 scientific theory summarizes a hypothesis or group of hypotheses that have been supported with repeated testing. Credit: alphaspirit/ShutterStock. A scientific theory is a specific type of theory used in the scientific method. The term theory can mean something different, depending on whom you ask.