A computer system uses passwords that have six characters, and each character is one of the 26 letters (a-z) or 10 integers (0-9). The first character has to be a letter. The passwords are not case sensitive. Q 1(a) Determine the proportion of passwords that (1) begin with a consonant (ii) end with an even number (0,2,4,6,8) (ii) begin with a consonant and end with an even number

A First Course in Probability (10th Edition)
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ISBN:9780134753119
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Chapter1: Combinatorial Analysis
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A computer system uses passwords that have six characters, and each character is
one of the 26 letters (a-z) or 10 integers (0-9). The first character has to be a letter.
The passwords are not case sensitive.
Q 1(a)
Determine the proportion of passwords that
(i) begin with a consonant
(ii) end with an even number (0,2,4,6,8)
(iii) begin with a consonant and end with an even number
Transcribed Image Text:A computer system uses passwords that have six characters, and each character is one of the 26 letters (a-z) or 10 integers (0-9). The first character has to be a letter. The passwords are not case sensitive. Q 1(a) Determine the proportion of passwords that (i) begin with a consonant (ii) end with an even number (0,2,4,6,8) (iii) begin with a consonant and end with an even number
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