00:01
In this question, we need a probability tree diagram that is supposed to be given, but it's not.
00:06
So i'm going to just draw a tree.
00:11
And suppose you just use the same technique so that you are able to proceed with answering the question.
00:20
Now, we're given that probability of m is 0 .9.
00:24
So this is probability of m.
00:28
So this branch of the tree is probability of m.
00:31
And this branch of the tree will be probability of n, which is going to be 0 .1.
00:37
Take note that the total probability here should add up to 1.
00:41
Now we're given this part here is 0 .4, and over here is 0 .6.
00:51
So over here is actually probability of s given m.
00:57
Because it follows after m, so it's probability of s given m.
01:02
So this is equal to 0 .6.
01:07
And over here, we have 0 .5...