Unit 1 Vocabulary

A question that can be answered by collecting many pieces of information, or data, and summarizing the data.

The set that contains all of the elements of two or more sets.

An event that consists of two or more events linked by the word 'and' or the word 'or'.

The set of elements that are common to two or more sets.

The part of a population that is surveyed.

When two events cannot happen at the same time. If A and B are mutually exclusive events, then P(A or B) = P(A) + P(B).

P(A or B) = P(A) + P(B) - P(A and B).

How likely it is that an event will occur, written formally as P(event).

Consists of multiple overlapping closed curves, usually circles, each representing a set. The points inside a curve labelled S represent elements of the set S, while points outside the boundary represent elements not in the set S.

P(A and B) = P(A) P(B).