Probability

Probability

1. Concepts

   • Odds (posibilities)
   • Event
   • Outcomes
   • Sample space
   • two events
     • P(A and B) = P (A) X P(B/A)
   • One event
     • P(A n B) = P(A) X P(B)

2. Formulas

   • P(E) = Total the elements of favorable results/ Total the elements of results
   • P(E) = Total the elements of times that event occurs/total the elements of times the experiment´sperformed

3. Events involving

   • ´´ Two events are independent if the occurrenceof one of them doesn´t affect the ocurrence of the other
   • Conditional formula
     • P(B/A) = P(A n B)/ P(A)

4. Set Operations

   • Intersection
     • An B =(xlx E A and x E B)
   • Complement
     • A´= (xlx E U and X E A)
   • Union
     • A U B = (xlx E A or x E B)
   • Difference
     • A-B = (xlx E A and X E B )

5. Events involving not and or

   • Probability
   • Odds in favord
   • Mutually exclusive events
   • Probability of the complement
   • Properties of probablility
     • Certain event
     • Impossible event
     • Probability value