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Counting Principle and Tree Diagrams

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A mini license plate for a toy car must consist of three numbers followed by a letter. Each number must be a 3,6, or 9. Repetition of digits is NOT permitted. Each letter must be an A, B, or C.
*Use the counting principle to determine the number of points in the sample space.
*construct a tree diagram to represent situation
*List the sample space.

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The counting principle is embraced in this solution.

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A plate for a toy car must consist of three numbers, followed by a letter. Each number must be a 3, 6, or 9. No Repetition of digits. Each letter must be an A, B, or C. ...

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