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How many different four- letter secret codes can be formed

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1. You are dealt one card from a standard 52-card deck. Find the probability of being dalt a number greater than 2 and less than 8.

2. You are taking a multiple-choice test that has 9 question. Each of the question has 3 choice with one correct choice per question. If you select one of the option per question and leave nothing blank. In how may ways can you answer the question?

3. How many different four- letter secret codes can be formed if the first letter must be an S or a T ? Repetitions are allowed.

4. A certain model home can be built on four different lots, painted in six different colors, and can have one or two styles of front doors. How many different option are there for this home?

Reference no: EM131066814

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