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Across 4. A symbol thta represents one or more numbers. 8. Possibility of an event. 9. Used to find experimental probabilities. 12. Is a number a variable or the product of a number and one or more variables. 13. When you do something in order. 17. If a sample space has N equality likely outcomes & event A occurs in M of these outcomes, the theoritical probability of an event A is P(A)=M/N. 19. Any non zero number, A is 1/A. 20. An expression that contains one or more variables.

Down 1. Of any number A is -A the sum of opposite is zero. 2. Any non zero number, A is 1/A. 3. A number that makes an equasion true. 5. The distance a number is on a number line. 6. The numerical factor in a term. 7. Expression that uses one or more variables. 10. Solution of an equasion derived from an original equation that isn't a solution to the original equation. 11. Pair of inequalities joined by and or or. 14. The set of all possible outcomes. 15. The distance a number is from zero. 16. Of any number A is -A the sum of opposite is zero. 18. Equals one half of the difference between the maximum and minimum values.