Section 2.1

Question 1

what is classical probability?

Answer 1

each outcome has same chance of occurring, so probability of an event is
simply the proportion of outcomes in the event

Question 2

what is frequent probability?

Answer 2

the probability of an event is defined by the long-term relative frequency that it occurs

Question 3

what is subjective probability?

Answer 3

a probability statement represents a “degree of belief” that the event will occur, so are a personalised/ subjective judgement

Question 4

what is a random phenomenon?

Answer 4

a situation in which we know what outcomes could happen, but we do not know which particular outcome did or will happen

Question 5

what is an experiment?

Answer 5

a process that leads to an observation, known as an outcome

Question 6

what is an event?

Answer 6

a collection of a sample points/ possible outcomes

Question 7

what is a simple event?

Answer 7

contains a single sample point

Question 8

what is a compound event?

Answer 8

contains more than one sample point

Question 9

what are mutually exclusive events?

Answer 9

events that cannot occur at the same time