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Jerome is creating a secret passcode for his vault. The vault uses some of the Greek...

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Basic Math

Jerome is creating a secret passcode for his vault. The vaultuses some of the Greek alphabet –possible choices are (?, ?, ?, ?,?, ?, ?, ?, ?, ?, ?, ?}, and can also use odd digits (1, 3, 5, 7,9). The code will be of length 10 and selected randomly from thepossible Greek letters or Roman Numerals mentioned above. a) Howmany possible secret passcodes can be formed of length 10? b) Whatis the probability that a randomly selected passcode contains onlyGreek letters and no numbers? c) What is the probability that thefirst and last position of a randomly selected passcode containsodd numbers? d) What is the probability that a randomly selectedcode has no repeats? e) Given that a randomly selected passcodecontains only Greek letters, what is the probability that it startsand ends with the letter ??

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a noof roman greek alphabets12noof roman numerals5since we can go for repetition of numbers or letters the noofsecret codes that can be formed of length 10171017 ways17 ways17 ways17 ways17 ways17 ways17 ways17 ways17 ways17 waysb noof secret codes with greek alphabets onlyis equivalent to    See Answer
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