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How can you find the probability of two mutually exclusive events?

The calculation is equal to the sum of their probabilities less the probability of both events occuring. If two events are mutually exclusive then the combined probability that one or the other will occur is simply the sum of their respective probabilities, because the chance of both occurring is by definition zero.


If two events are independent the probability that both occur is?

That probability is the product of the probabilities of the two individual events; for example, if event A has a probability of 50% and event B has a probability of 10%, the probability that both events will happen is 50% x 10% = 5%.


How often is the probability of the complement of an event less than the probability of the event itself?

It depends on the events. The answer is 0.5*(Total number of events - number of events with probability = 0.5) That is, discount all events such that their probability (and that of their complement) is exactly a half. Then half the remaining events will have probabilities that are greater than their complement's.


What is addition and multiplication theorems on probability with examples?

When considering the probability of two different events or outcomes, it is essential to clarify whether they are mutually exclusive or independent. If the events are mutually exclusive, then the probability that either one or the other will occur equals the sum of their individual probabilities. This is known as the law of addition. If, however, two or more events or outcomes are independent, then the probability that both the first and the second will occur equals the product of their individual probabilities. This is known as the law of multiplication.


How do you teach probability of independent events?

Two events are said to be independent if the result of the second event is not affected by the result of the first event. Some common ways to teach this are to perform simulations with coin flips.Students need to understand that if A and B are independent events, the probability of both events occurring is the product of the probabilities of the individual events.Students can predict and then observe probabilities of a fixed number of heads or tails.This lets then see the ideas in action.

Related Questions

When two probabilities are added together the probabilty represnts a simple event?

When two probabilities are added together, the result represents the probability of either of the two events occurring, provided that the events are mutually exclusive (i.e., they cannot happen at the same time). If the events are not mutually exclusive, their combined probability would require adjustments to avoid double-counting the overlap. Thus, in the case of mutually exclusive events, the sum of their probabilities is a valid representation of a simple event.


How do you calculate the probability for a group of several independent events?

You multiply together their individual probabilities.


If two events are mutually exclusive what is the probability that one or the other occurs?

Add the probabilities of the two events. If they're not mutually exclusive, then you need to subtract the probability that they both occur together.


What is the probability of the multiple of three?

Things and numbers don't have probabilities. Situations and events that can happen have probabilities.


What is principle of additivity?

The principle of additivity states that the probability of the union of two mutually exclusive events is equal to the sum of their individual probabilities. This means that when events are mutually exclusive (cannot both occur at the same time), their probabilities can be added together to find the probability of either event occurring.


How do you find the probability of an event followed by another event?

If the events are independent then you can multiply the individual probabilities. But if they are not, you have to use conditional probabilities.


What is the greatest possible probability in any experiment?

The greatest possible probability in any experiment is 1, which represents certainty that an event will occur. This value can also be expressed as 100%. Probabilities range from 0 (impossible events) to 1 (certain events), so 1 is the maximum limit for any probability.


Definition of the Product rule in genetics?

The product rule states that the probability of two independent events occurring together is equal to the product of their individual probabilities. In genetics, the product rule is used to calculate the probability of inheriting multiple independent traits or alleles simultaneously from different parents.


Why conditional probability is different from common probability?

Conditional probabilities arise when you revise the probabilities previously attached to some events in order to take new information into account. The revised probabilities are 'conditional on the new information you have received'.


How can you find the probability of two mutually exclusive events?

The calculation is equal to the sum of their probabilities less the probability of both events occuring. If two events are mutually exclusive then the combined probability that one or the other will occur is simply the sum of their respective probabilities, because the chance of both occurring is by definition zero.


If two events are independent the probability that both occur is?

That probability is the product of the probabilities of the two individual events; for example, if event A has a probability of 50% and event B has a probability of 10%, the probability that both events will happen is 50% x 10% = 5%.


What is Probability of Flipping a coin five times in a row and having it land on heads?

The probability of getting a heads on the first flip is 1/2. Similarly, the probability on each subsequent flip is 1/2, since they are independent events. The probability of several independent events happening together is the product of their individual probabilities.