Probability theory, a branch of mathematics concerned with the analysis of random phenomena. The outcome of a random event cannot be determined before it occurs, but it may be any one of several possible outcomes. The actual outcome is considered to be determined by chance.
Probability concerns events and numerical descriptions of how likely they are to occur. The probability of an event is a number between 0 and 1; the larger the probability, the more likely an event is to occur. [note 1][1][2] This number is often expressed as a percentage (%), ranging from 0% to 100%.
The probability of an event can only be between 0 and 1 and can also be written as a percentage. The probability of event A is often written as P (A) . If P (A)> P (B) , then event A has a higher chance of occurring than event B . If P (A) = P (B) , then events A and B are equally likely to occur.
Probability is all about how likely is an event to happen. For a random experiment with sample space S, the probability of happening of an event A is calculated by the probability formula n(A)/n(S).
In the Basic Concepts of Probability, we were considering a Monopoly game where, if your sister rolled a sum of 4, 5, or 7 with 2 standard dice, you would win the game. What is the probability of this event? Use tables to determine your answer. Now, each of the 36 ordered pairs in the table represent an equally likely outcome. Answer