Probability Problem

[CharlieV]

I have a box containing N balls.
2 of them are red, 3 of them are blue and the rest are white.
You are blindfolded and remove M of them.
What is the probability that you have both of the red balls?
What is the probability that you have at least 2 of the blue balls?
(Source: Tong-Its)

C-B

 

[Steven G]

This is a math help site. What help do you need?

 

[CharlieV]

What is the probability that you have both of the red balls?
What is the probability that you have at least 2 of the blue balls?

 

[JeffM]

What is the probability that you have both of the red balls?
What is the probability that you have at least 2 of the blue balls?

You don't get it.

We are not an ANSWER site. We HELP you find an answer.

If M < 2, what is the probability that you have two red balls? What is the probability that you have two blue balls?

Do you see that N must equal or exceed 5? Why?

Do you think that permutations or combinations are more likely to be helpful? Why?