Amsco Integrated Algebra I: Evaluating Simple Probabilities
 This is a free lesson from our course in Amsco's Integrated Algebra

 This lesson explains how to evaluate simple probabilities. In such a case two cases are possible: • The Impossible Case:The probability of an impossible event is zero. For example, on a single roll of a die, what is the probability that the number 7 will appear? P(E)= Number of ways to roll a 7/number of outcomes for the die =n(E)/n(s)=0/6=0. • The Certain Case:The probability of an event that is certain to occur is 1. For example, On a single roll of a die, what is the probability that the number less than 7 will appear? (More text below video...)
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 (Continued from above) P(E)= Number of ways to get number less than 7/number of outcomes for the die =n(E)/n(s)=6/6=1. The probabilities fall between 0 and 1. It can be concluded that the probability of any event E must be equal to or greater than zero,and less than or equal to 1.i.e. 0 ≤ P(E) ≤1. The video below further explains with the help of several examples.

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