50 Key Vocab REVIEW!!

Two numbers, a and b,that satisfy the equation a × b = 1. Ex) ¼ × 4 = 1.

A game in which each player is equally likely to win. 

A comparison of quantities measured in two different units. 

A number between 0 and 1 that describes the likelihood that an outcome will occur.

The four sections into which the coordinate plane is divided by the x- and y-axes.

A point that divides a line segment into two segments of equal length.

Data collected from every individual in a population.

A number that is multiplied by a variable in an equation or expression.

The number used to multiply the lengths of figures to stretch or shrink it to a similar image. 

This property for rational numbers is 1 or any rational expression equal to 1. For N,N × 1 = N.

Choosing a sample because it is of easy access to you.

The area required to cover a three-dimensional shape.

A unit of measure of angles; is also equal to 1/360 of a complete circle.

The figure formed by two rays or line segments that have a common vertex; measured in degrees.

This property states that for any three real numbers a, b, and c, a(b + c) = ab + ac

The point where the x- & y-axes intersect on a coordinate graph. It has coordinates of (0, 0).

A rule containing one (or more) variable that represent a mathematical relationship. 

A set of agreements for carrying out calculations with one or more operations.

An event that consists of two or more simple events.

The amount of space occupied by, or the capacity of, a three-dimensional shape. 

A slice that goes from one point on a circle through the center to another point on the circle.

The covering of a plane surface with geometric shapes without gaps or overlaps. 

One of the two variables in a relationship. Its value depends upon the other variable.

The measure of the distance around a two-dimensional figure. 

The constant ratio of two proportional quantities, x and y; usually written as y = k(x).