chapter 16

• mutually exclusive?


  two events are mutually exclusive if they have no outcomes in common. They can not happen at the same time
• Exhaustive?


  outcomes are exhaustive if they include all the possible outcomes of an event
• Prime numbers up to 20?


  2,3,5,7,11,13,17,19
• relative frequency?

  number of successful trials/number of trials
• what is the intersection?

  where two sets overlap
• what is the union?

  if you put two sets together, you get the union
• the complement of A is the region that is not A?

  this means not A