A combination lock has 4 dials, each with the digits 2, 3, 4, and 5. What is the probability that someone could guess the correct combination on the first try by randomly selecting a number from 2 to 5 four times?
10,000
10,000 combinations because you can go up to 9999
According to the question, the dials don't go up to nine.
.
4 dials with digits 1 2 3 4
4 x 4 x 4 x 4 = 44 possible combinations = 256 possibles
you have a 1 in 256 chance of guessing it on one try
