SOLUTION: please help me solve this problem. a computer password made up of four characters. Each can be a capital letter (A-Z)a lower case letter (a-z) or a digit (0-9). if the password is

Question 892187: please help me solve this problem.
a computer password made up of four characters. Each can be a capital letter (A-Z)a lower case letter (a-z) or a digit (0-9). if the password is randomly chosen, what is the probability that the password will only contain lower case letters? hint: use the multiplication rule to count the sample space and event space.
thank you =)
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
All upper case -
All lower case -
Digits -
The total possible is then .

If all are lower case, then the total possible is only .

The probability of all lower case is then,

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