10^3 for digits
(26-5)for first letter
26 for second letter
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
A student created a 6 character computer password, the password strts with 4 digits, the first of which is he number 3, followed by 2 letters, the firsr of which is a consonant. How many different passwords are possible if repetition is allowed?
1 answer