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1.A mini license plate for...

1.A mini license plate for a toy car must consist of a letter followed by two numbers. Each letter must be a C, A or R. Each number must be a 3 or 7. Repetition of digits is permitted.

Use the counting principle to determine the number of points in the sample space.

Construct a tree diagram to represent this situation

List the sample space

Determine the exact probability of creating a mini license plate with a 7. Give solution exactly in reduced fraction form.

Use the counting principle to determine the number of points in the sample space.

Construct a tree diagram to represent this situation

List the sample space

Determine the exact probability of creating a mini license plate with a 7. Give solution exactly in reduced fraction form.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.