# probability & statistics

posted by .

Q: if A and B are independent events, how many of the following statements must be true?

1. A' and B are independent
2. A and B' are independent
3. A' and B' are independent

is choice 3 the only one that is true?

• probability & statistics -

I don't get the question. What are A' and B'?

## Similar Questions

1. ### Probability

three fair dice are tossed. Let X,Y,Z denote the respetive numbers showing on their top faces. Assume X,Y,Z are independent. a) find P(X<Y) b) Show that the events (X<Y) and (Y<Z) are NOT independent heeelp...
2. ### Probability

Show that if events A B and C are independent that the following pairs of events are also independent: a) A and B Union C b) A - B and C
3. ### English

1.(The hikers walked) until they were exhausted. 2.Has John met the family (who moved in next door)?
4. ### statistics

Which of the following is NOT true with respect to the properties of probability?
5. ### statistics

Which of the following is NOT true with respect to the properties of probability?
6. ### Statistics

*Give all probabilities to two decimal places. Three daily newspapers are published in a large city. Suppose we have the following facts about the people in the city: 60% read Newspaper A. 34% read Newspaper C. 72% read Newspaper A …
7. ### Statistic

What must be true in order for P(A OR B)=P(A) +P(B)?
8. ### Statistics

Determine whether the following statements are true or false: 1. P(A and B)=P(B|A)P(B). 2. When A and B are independent, P(A)=P(B). 3. When A and B are independent, P(A|B)=P(A). 4. When A includes B, P(A|B)=1. 5. When B is the complement …
9. ### statistics

Define the concept of independent events with regards to probability. Provide an example of an event that is independent and an event that is not independent
10. ### Probability

We are told that events A and B are conditionally independent, given a third event C, and that P(B∣C)>0. For each one of the following statements, decide whether the statement is “Always true", or “Not always true." A …

More Similar Questions