Module 3-1 Flashcards
1
Q
What is a Trial?
A
Each occasion upon which we observe a random phenomenon. e.g. 2 coin toss
2
Q
What is an Outcome?
A
When in each trial we note the value of the random phenomenon e.g. HH
3
Q
What is a Sample Space?
A
What is the collection of possible outcomes
4
Q
What are Disjoint events?
A
Those that never occur at the same time
5
Q
What are Independant events?
A
Events that when one event occur the other event remain unaffected. Disjoint events are always dependant
6
Q
What is the formula for A∪B?
A
P(A) + P(B) - P(A∩B)
7
Q
What is the formula for A∩B for dependent events?
A
P(A|B) x P(B)
8
Q
What is the formula for A∩B for independent events?
A
P(A) x P(B)
9
Q
What is the formula for P(A|B)?
A
P(A∩B)/P(B)
