Question

A bag contains 2 white marbles, 4 blue marbles, and 5 red marbles. Three marbles are drawn from the bag. What is the probability that not all of them are red?

Answer 1

First find the prob that ALL of them ARE red, which is
(6/11)(5/10)(4/9) = 2/33

So the prob that not all of them are red
= 1-2/33
=31/33

Answer 2

There are 5 marbles in a box. One is black, one is yellow, one is red, one is purple and one is orange.

Please answer this

Answer 3

The answer is 5 marbles in a box. One is black, one is yellow, one is red, one is purple and one is orange.

Answer 4

It will be 5/5 because it 's only one each