AP Stats 5.3 Conditional Probability

Question 1

P(B|A)= P(B∩A)/X

Accepted Answer

X=P(A)

Question 2

The probability that one event happens given another event already known to have happened...

Accepted Answer

conditional probability

Question 3

The multiplication rule is...

Accepted Answer

different for independent and dependent events

Question 4

Can mutually exclusive events be independent?

Accepted Answer

No

Question 5

Dice and coin flips/rolls are...

Accepted Answer

independent

Question 6

What is the purpose of a probability distribution?

Accepted Answer

Lists all outcomes of a random event and the probabilities, lists both the probabilities and outcomes

Question 7

In a tree diagram, what percentage do all of the "branches" add up to?

Accepted Answer

100%

Question 8

What is the general multiplication rule used for?

Accepted Answer

finding the prob. of both events A and B occurring

Question 9

What types of diagrams/charts can be used for conditional probability?

Accepted Answer

both A and B

Question 10

| means

Accepted Answer

given

Question 11

For events A and B related to the same chance process, which of the statements is true?

Accepted Answer

If A and B are independent, they can't be mutually exclusive

Question 12

U means

Accepted Answer

and

Question 13

A: prob. of 0.5 & B: prob. of 0.4. If A and B are indep., what is the prob that A or B occurs?

Accepted Answer

.7

Question 14

The probability that a buyer bought bucket seats, given that they purchased an alarm system?

Accepted Answer

50%

Question 15

What is the probability of getting heads, heads, tails?

Accepted Answer

.125

Question 16

What is the probability of flipping heads, heads?

Accepted Answer

.25

Question 17

Two events are mutually exclusive if ...

Accepted Answer

They both can not occur together

Question 18

What would make an event dependent?

Accepted Answer

not influenced by whether another event occurs

Question 19

What is a synonym for "mutually exclusive?"

Accepted Answer

disjoint

Question 20

∩ means

Accepted Answer

or

Questions 20