Answer: 0.0386
Step-by-step explanation:
Number of digits = 10
Number of letters in English alphabet = 26
Total number of characters =
Now, if replication is allowed, then the total number of ways to make a ten character password will be :_
The number of ways to make a password having all letters :-
Now, the probability that the password will contain all letters will be :-
Hence, the probability that the password will contain all letters =0.0386