00:01
Hello, here a box contains 6 blue balls plus 8 yellow balls.
00:09
And we select 4 balls.
00:13
We have to find probability that 3 are blue.
00:17
Let's do this.
00:19
So, let's calculate this probability.
00:24
That's the sum of the following.
00:29
That's probability that basically there is a blue, blue, blue, yellow, plus probability that that is blue, blue, yellow, blue, plus probability that that is blue, yellow, blue, blue, and plus probability of yellow, blue, blue, blue...