14 terms

Aligned to The Practice of Statistics (Starnes, Tabor, Yates, Moore) 5th edition

complementary events

two disjoint events that together make up the entire sample space

P(at least 1)

1- P(none)

mutually exclusive events (disjoint events)

events that can't happen at the same time

A ∩ B

A intersect B; the outcomes that are in A and that are also in B

Independent events

the probability of one occurring does not affect the probability of the other; P(A) = P(A|B)

The Law of Large Numbers

As the number of trails increases, the proportion of times a specific outcome occurs approaches a single value

outcome

the possible result of a situation or experiment

event

a single outcome or a group of outcomes

sample space

the set of all possible outcomes

probability

the numerical value from 0 to 1 that measures the likelihood of an event;

P(event) = (number of favorable outcomes) ÷ (number of possible outcomes)

P(event) = (number of favorable outcomes) ÷ (number of possible outcomes)

trial

in probability, a single repetition or observation of an experiment

probability model or probability distribution

identifies all possible outcomes and the corresponding probability of each possible outcome

A ∪ B

A union B; ; the outcomes that are in A or B (or both)

conditional probability, P(A|B)

The probability that A occurs, given that B has occurred