SOLUTION: We want to form a license plate using 4 letters (A-Z) followed by 3 numbers (0-9). Both may be used more then once. A license plate is chosen randomly. What is the probability t
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Question 317637: We want to form a license plate using 4 letters (A-Z) followed by 3 numbers (0-9). Both may be used more then once. A license plate is chosen randomly. What is the probability that the letter A is not used? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! We want to form a license plate using 4 letters (A-Z) followed by 3 numbers (0-9). Both may be used more then once. A license plate is chosen randomly. What is the probability that the letter A is not used?
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Number of plates with no "A" = 25^4*10^3
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Number of plates with no restriction = 26^4*10^3
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P(letter A not used) = 25^4/26^4 = 0.8548
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Cheers,
Stan H.
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