00:01
Okay, in this question we are given that there are 11 blue marbles, 11 red, and finally 10 yellow.
00:11
We want to calculate the probability of various different marbles with these numbers right here.
00:18
The first step to this is actually calculating what the total of all of this right here is.
00:23
So all we have to do is add this up, and that is simply, see that's 22, so it's 32 right here.
00:34
And now we want to calculate the probability of a selecting a blue or red marble, which if you go here, blue and red is 21 over 32.
00:47
And that is simply the answer right there of a blue and red marble.
00:52
And step or sorry, the part b says probably a yellow marble, which in this case it says there's 10 yellow.
01:02
So 10 over 32.
01:05
And that is a final answer right there...