An online account password for a certain website consists of eight characters, where at least one...

An online account password for a certain website consists of eight characters, where at least one must be a digit (i.e. a number from 0-9).

a. How many different passwords are possible if only lowercase letters and digits can be used?

b. How many different passwords are possible if a user wants to include single capital letter somewhere in their password?

c. If a computer program randomly generates eight characters (such that each could be either a digit or any lowercase letter), what is the probability that a valid password is generated?

Expert Solution

milcah answered 1 year ago

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