There are three red marbles, four green marbles, two yellow marbles and five blue marbles in a bag. When these marbles are taken out, they will not be put back. Calculate the following probability.

You got it?

Because I am not sure about the answer to 3-6, I'd better not talk nonsense = = |||.

The answers to questions 1 and 2 should be one in seven, right?

I'm curious, have you just gone abroad?

This topic reminds someone that I am poor. & lt！