In: Statistics and Probability
In a lottery, each ticket has 5 one-digit numbers 0-9 on it. (with no digit repeating twice)
You win only if your ticket has the digits in the required order. What are your chances of winning?
Total number of tickets possible with 5 digits = 10P5 = 10! / (10 - 5)! = 30240
P(winning) = 1/30240 (ans)