0
Basic Rules of Probability:
1) The probability of an event (E) is a number (fraction or decimal) between and including 0 and 1. (0≤P(E)≤1)
2) If an event (E) cannot occur its probability is 0.
3) If an event (E) is certain to occur, then the probability if E is 1. This means that there is a 100% chance that something will occur.
4) The sum of probabilities of all the outcomes in the sample space is 1.
Addition Rules/Formulas:
When two events (A and B) are mutually exclusive, meaning that they can't occur at the same time or they have no outcomes in common, the probability that A or B will occur is:
P(A or B)= P(A)+P(B)
If A and B are not mutually exclusive, then:
P(A or B)= P(A)+P(B)-P(A and B)
Multiplication Rules/Formulas:
When two events (A and B) are independent events, meaning the fact that A occurs does not affect the probability of B occurring (for example flipping a coin, rolling a die, or picking a card), the probability of both occurring is:
P(A and B)= P(A)P(B)
Conditional Probability-When two events are dependent (not independent), the probability of both occurring is:
P(A or B)= P(A)P(B|A)
Note: P(B|A) does not mean B divided by A but the probability of B after A.
What else can I help you with?
What does it mean to find the compliment of the probability of an event?
The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.
What are the two laws of probability?
There are numerous laws or rules. The related link probably described the most basic of them, listed below: 1. For any event, the probability must be between 0 and 1, inclusive. 2. The sum of all the events must equal 1.
Is 1.001 a probability?
No 1.001 is not a probability. Probability can not be >1
If a coin is tossed 5 times what is the probability of getting tails no more then 2 times?
The probability is 0.5The probability is 0.5The probability is 0.5The probability is 0.5
If the odds against an event are 9.8 find the probability that the event will occur?
Odds against A = Probabillity against A / Probability for A Odds against A = (1 - Probabillity for A) / Probability for A 9.8 = (1 - Probabillity for A) / Probability for A 9.8 * Probability for A = 1 - Probability for A 10.8 * Probability for A = 1 Probability for A = 1 / 10.8 Probability for A = 0.0926
Does empirical rules always apply to discrete probability distribution?
the empirical rules of probablility applies to the continuous probability distribution
How are going to determine the probability of an event?
See the Basic Rules for Probability section in the related link.
What are the four basic rules of probability?
The four basic rules of probability are: Non-negativity: The probability of any event is always between 0 and 1, inclusive. Normalization: The total probability of all possible outcomes in a sample space sums to 1. Additive Rule: For mutually exclusive events, the probability of either event occurring is the sum of their individual probabilities. Multiplicative Rule: For independent events, the probability of both events occurring is the product of their individual probabilities.
What is the probability of a heavyweight boxer winning the flyweight division?
The probability is zero since the rules governing boxing would not permit a heavyweight boxer to fight at flyweight.
What does event mean in maths?
Something that may or may not happen as in the rules of probability from a scale of 1 to 0
What is the probability that the random variable has a value less than 5?
That depends on the rules that define the random variable.
What will happen if safety rules are not followed?
It will lead to a high probability of risk in failure,damage,loss of assets or life.
What does theoretical probability mean in math terms?
Sometimes it is possible to define a model for a trial or experiment and then use mathematical or scientific rules to determine the probability of the possible outcomes. Such a procedure gives theoretical probabilities.
What are the odds of rolling a small straight 12345 with five dice with the rules of yahtzee?
The probability is 120/7776 = 0.0154, approx.
Who found probability?
No individual can be said to have discovered the rules of probability. Some people that made important contributions are Gerolamo Cadarno, Pierre de Fermat, Blaise Pascal and Chritiaan Huygens.Pierre-Simon Laplace wrote what many consider to be the definitive work.
What is the probability that the number is greater than 4?
That depends what rules you use, to choose a number randomly.
What does it mean to find the compliment of the probability of an event?
The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.The complement (not compliment) of the probability of event A is 1 minus the probability of A: that is, it is the probability of A not happening or "not-A" happening.
