Camila sets up a passcode on her tablet, which allows only five-digit codes. She has heard that it's more secure if a digit is repeated in the passcode. A spy sneaks a look at Camila's tablet...

Camila sets up a passcode on her tablet, which allows only five-digit codes. She has

heard that it's more secure if a digit is repeated in the passcode. A spy sneaks a look at

Camila's tablet and sees her fingerprints on the screen over four numbers. What is the

probability the spy is able to unlock the tablet on his first try? Express your answer as a

fraction in lowest terms or a decimal rounded to the nearest millionth.