# statistics - conditional probability

Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur?

I'm so confused. This seems so simple, I'm not sure why I can't reason through it. They're not independent events...

asked by Pam
1. 9. An event A will occur with probability 0.4. An event B will occur with probability 0.6. The probability that both A and B will occur is 0.24. We may conclude

posted by Anonymous

First Name

Your Answer

## Similar Questions

1. ### statistics - conditional probability

Event A has probability 0.9 of occurring. Event B has 0.2 chance of occurring if, and only if, event A has occurred. What is the overall probability that event B will occur? I'm so confused. This seems so simple, I'm not sure why
2. ### Help Math

Events A and B are mutually exclusive. The probability of event A occurring is0.15; the probability of event B occurring is 0.45; what is the probability that A and B will occur? A.0.30 B.0.60 C.1 D.0.40 I think C am I correct?
3. ### Statistics

One event A is _________________ of another event B if the probabilty of event A has occurred given event B is the same as the probability that A will occur with no knowledge of B. disjoint mutually exclusive dependent independent
4. ### Statistics

Events and are mutually exclusive. Suppose event occurs with probability and event occurs with probability . Compute the probability that occurs or does not occur (or both). Compute the probability that either occurs without
5. ### Math

If the odds in favor of an event A are 3 to 1, what is the probability associated with event A occurring? I am so confused with this question could you show me how I could solve it?
6. ### Math

If the probability of an event occurring is 1/y, what is the probability that the event will not occur? A. y B. y-1/y C. y/y-1 D. 1-y/y Is it B?
7. ### statistics

How do I find the probability of an event A occurring or an event B occurring but not both? How do find this equation with a Venn diagram?
8. ### Statistics

1. A human gene carries a certain disease from a mother to her child with a probability rate of 0.58. That is, there is a 58% chance that the child becomes infected with the disease. Suppose a female carrier of the gene has five
9. ### Math

Given P(A) = m is the probability of event A occurring in any given trial: 1. State the range of possible values of m 2. Suppose two trials are performed independently. Find, in terms of m, the probability of A occurring: a)
10. ### Statistics

Events A, B, and C are defines on sample space S. Their corresponding sets of sample points do not intersect and their union is S. Further, event B is twice as likely to occur as event A, and event C is twice as likely to occur as

More Similar Questions