Definitions 2

Question 1

Deterministic relationship

Answer 1

an exact relationship between predictor & response variables

Question 2

Probabilistic relationship

Answer 2

uncertain relationship between predictor & response variables

Uncertain =/= clueless

Question 3

Probability theory

Answer 3

branch of mathematics that determines probability (odds) of events

Used to make predictions (inferences)

Question 4

Random relationship

Answer 4

each outcome has = chance of occurring

Ex: flip a coin, roll dice, pick a card

Question 5

Stochastic relationship

Answer 5

outcomes have non-equal chance of occurring

elderly people more likely to have heart disease than young people; men more likely to have speeding tickets than women

Question 6

Probability

Answer 6

mathematical measure of the likeliness of an event (specific outcome) taking place

Question 7

Outcome:

Answer 7

possible result of an experiment or test

Question 8

Classical approach formula

Answer 8

P(an outcome)=

(Total number of ways this outcome occurs)/(Total number of possible outcomes)