Math Combinations

This is a brief tutorial defining combinations and calculating combinations.

Texas Lottery

This is the official site for the Texas lottery.

Texas Lottery

Here you will fing lottery information and the probability of various numbers of winning numbers.

Definition of Probability

This site defines probability and includes recommended investigations related to the NCTM standards.

Lottery Simulation

This neat site allows you to simulate a lottery. You determine the total number of possibilities and the number of winning selections. It will randomly roll a set of winning numbers and calculate your probability of winning.

Lottery Odds Calculator

A great probability checker! You input the total number, the number drawn and the number of winning numbers. The Lotto Genie gives you the probability.