Week 4

Question 1

Probabilities are…

Answer 1

Proportions

Question 2

You can calculate any probability using ___ and _____, you do not NEED a probability rule (but then are of value)

Answer 2

logic and counting

Question 3

Rule 1- For any event A,…

Answer 3

0 ≤ P(A) ≤ 1

Question 4

Rule 2 - The sum of the probabilities of all possible outcomes is

Answer 4

1

Question 5

Rule 3 - P(A’)…

Answer 5

P(A’) = P(not A) = 1 – P(A)