a. Explanation Calculation: It is given that the password contains seven characters, first six characters are alternatively consonants and vowels and last character is a digit. In German alphabet consists five vowels and 21 consonants. Repetitions are allowed. The Fundamental Principle of Counting: If an action can be perform in m ways and another action can be perform in n ways then both the action can be done together in mn different ways. The password contains seven characters. First six characters are alternatively consonants and vowels. That is there are three consonants and three vowels. Each consonant can arrange in 21 different ways and vowels can arrange in 5 different ways. Last character in the password is a digit it can be arrange in 10 different ways. Substitute these values in the fundamental principle of counting... b. To determine Find the probability that the password is banana7.

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ISBN: 9781259570643

Author: Navidi

Publisher: MCG

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Chapter 4, Problem 13CQ

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Find the possible number of passwords.

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Find the probability that the password is banana7.

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Chapter 4, Problem 12CQ

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Find the possible number of passwords.

Solution Summary: The author explains that 11,576,250 passwords are possible. The password contains seven characters, three consonants and three vowels.

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Find the possible number of passwords.

Find the probability that the password is banana7.

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Chapter 4 Solutions