**National STEM Education Standards**. Probability is the measure of how likely an event is. Probability word problems worksheet. Read More...

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Probability Concepts

STEM.M. MATHEMATICS: National Council of Teachers of Mathematics

NCTM.1. Number and Operations

1.1. Understand numbers, ways of representing numbers, relationships among numbers, and number systems.

1.1.3. Develop understanding of fractions as parts of unit wholes, as parts of a collection, as locations on number lines, and as divisions of whole numbers.

NCTM.2. Algebra

2.3. Use mathematical models to represent and understand quantitative relationships.

2.3.1. Model problem situations with objects and use representations such as graphs, tables, and equations to draw conclusions.

NCTM.5. Data Analysis and Probability

5.4. Understand and apply basic concepts of probability.

5.4.1. Describe events as likely or unlikely and discuss the degree of likelihood using such words as certain, equally likely, and impossible.

5.4.3. Understand that the measure of the likelihood of an event can be represented by a number from 0 to 1.