The slides are different from each other so the chance of getting one of them is 1/18.
The chance of getting it again is 1/18 × 1/18 = 1/324
So, P(a number both times) = 1/324
Answer:
9/18 or 1/2
Step-by-step explanation:
you have 9 numbers and 9 letters. you know that you have 18 on the bottom because or 9+9=18. this just means that the probability that you will get a number twice is 1/2 because the two are independant.
