SOLUTION: You have a combination lock with 4 single digit number at school. If you forget your combination, what is the probability that you will open the lock with the correct combination o

Algebra ->  Permutations -> SOLUTION: You have a combination lock with 4 single digit number at school. If you forget your combination, what is the probability that you will open the lock with the correct combination o      Log On


   

Question 1090091: You have a combination lock with 4 single digit number at school. If you forget your combination, what is the probability that you will open the lock with the correct combination on your first attempt?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
So there are 10 possible digits for each of the 4 slots of the lock,
N=10%2A10%2A10%2A10=10000
Only 1 is the correct combination,
P=1%2F10000