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Q: What is the probability of Aor B if and B are disjoint?
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Event A has probability 0.4 event B has probability 0.5 If A and B are disjoint then the probability that both events occur is?

If two events are disjoint, they cannot occur at the same time. For example, if you flip a coin, you cannot get heads AND tails. Since A and B are disjoint, P(A and B) = 0 If A and B were independent, then P(A and B) = 0.4*0.5=0.2. For example, the chances you throw a dice and it lands on 1 AND the chances you flip a coin and it land on heads. These events are independent...the outcome of one event does not affect the outcome of the other.


How do you find the probability of disjoint events?

Multiply the possible outcomes of the events in the disjoint events


Addition rule for probability of events A and B?

If they're disjoint events: P(A and B) = P(A) + P(B) Generally: P(A and B) = P(A) + P(B) - P(A|B)


If A and B are disjoint and B and C are disjoint are A and C disjoint?

Not necessarily. For a counterexample, A and C could be the same set.


What is a disjoint events mean?

In probability theory, disjoint events are two (or more) events where more than one cannot occur in the same trial. It is possible that none of them occur in a particular trial.


If A and B are disjoint sets and A contains 5 elements and B contains 7 how many elements are in the union of A and B?

The union of two disjoint sets is the combination of all elements contained in both sets. Since A and B are disjoint, their union will contain all elements from A and B without repetition. Thus, the union of A and B will contain 5 + 7 = 12 elements.


How does one find the probability of A given B compliment?

P(A given B')=[P(A)-P(AnB)]/[1-P(B)].In words: Probability of A given B compliment is equal to the Probability of A minus the Probability of A intersect B, divided by 1 minus the probability of B.


What does and mean in probability?

It means multiply, Probaility of A and B means probability of A multiplied by probability of B.


What is an example of a disjoint set?

The good real life example is the box of toys and the box of food. Imagine letting A be the box of toys and B be the box of food. Then, the intersection of those sets is empty.The example of disjoint set in mathematics is as followed:Let A = {1,2} and B = {3}. Then, A ∩ B = ∅


What is the or rule in probability?

Given two events, A and B, the probability of A or B is the probability of occurrence of only A, or only B or both. In mathematical terms: Prob(A or B) = Prob(A) + Prob(B) - Prob(A and B).


What is the probability of picking a number from a population of b numbers?

The probability is 1/b.


Can two disjoint sets be equivalent?

Yes,Because not all disjoint no equivalent other have disjoint and equivalent