Unit 3 Flashcards
1
Q
Probability
A
the likelihood that any one event will occur, given all the possible outcomes
2
Q
Probability Example
A
flipping a coin, rolling dice
3
Q
What is the sample space in probability?
A
a set of points (data
4
Q
What are events in probability?
A
Observable occurrences (a heads on a coin flip)
5
Q
The sum of the probabilities of ALL distinct events is
A
1.0
6
Q
If A and B are mutually exclusive (i.e., no sample points in common), then:
A
P (A or B) = P(A) + P (B)
A = rolling a 3
B = rolling a 2, 4, or 6
7
Q
How do we combine mutually exclusive probabilities?
A
P (A U B) = P(A) + P(B)
8
Q
How do we combine non-mutually exclusive events?
A
A playing card can be both an ace and a diamond
Flipping a car coin…. 3 times…. How many possible outcomes?….. make a list of outcomes
