In a certain state, license plates consist of three letters followed by three numbers. a. how many different license plates can be made? b. how many different license plates can be made in which no letter or number appears more than once? c. a license plate is chosen at random. what is the probability that no letter or number appears more than once?

2 answers
Question:

In a certain state, license plates consist of three letters followed by three numbers.
a. how many different license plates can be made?
b. how many different license plates can be made in which no letter or number appears more than once?
c. a license plate is chosen at random. what is the probability that no letter or number appears more than once?

Answers

A- 17,576,000 license plates can be made.B- 11,232,000 license plates can be made in which no letter or number appears more than once.C- The probability that no letter or number appears more than once is 63.9%.Since in a certain state, license plates consist of three letters followed by three numbers, to determine: A. how many different license plates can be made? B. how many different license plates can be made in which no letter or number appears more than once? C. a license plate is chosen at random. what is the probability that no letter or number appears more than once? The following calculations must be performed:Letters in alphabet = 26Numbers = 10A- (26 x 26 x 26) x (10 x 10 x 10) = X17,576 x 1,000 = X17,576,000 = XTherefore, 17,576,000 license plates can be made. B- (26 x 25 x 24) x (10 x 9 x 8) = X15,600 x 720 = X11,232,000 = XTherefore, 11,232,000 license plates can be made in which no letter or number appears more than once.C- 17,576,000 = 10011,232,000 = X11,232,000 x 100 / 17,576,000 = X1,123,200,000 / 17,576,000 = X63.9 = XTherefore, the probability that no letter or number appears more than once is 63.9%.Learn more in https://brainly.com/question/16484393

a. If any letters and numbers are allowed, there will be... 26×26×26×10×10×10 = 260³ = 17,576,000 possible platesb. If the letters and numbers cannot repeat, there will be... 26×25×24×10×9×8 = 11,232,000 possible plates with no repeatsc. The proabaility that a randomly chosen plate has no repeats is... 11,232,000/17,576,000 = 108/169 ≈ 0,63905_____When no repeats are allowed, the first letter choice can be any of the 26 letters. The second letter choice must exclude the first letter, so there are only 25 different letters to choose from. Likewise, the third letter choice cannot be either of the first two, so there are only 24 letters to choose from. The reasoning applies to numbers in similar fashion.

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