00:01
Hi, i'm david and i'm actually have you answered your question.
00:03
Now let me bring up your question here.
00:06
In the question here, we are given the table on the distribution of the printer 1, 2 and 3.
00:15
Let me try to summarize the question by the 3 diagram to make it easier.
00:20
Now we have the 3 printers.
00:21
I will denote as a printer 1, the printer 2 and the printer 3.
00:26
And the fraction of the contract, it will be the 0 .2.
00:30
For the printer 1, 0 .3 for the printer 2, and the 0 .15 for the printer 3.
00:36
And then they will have the chance that deliver more than 1 months late.
00:42
So i will call the l stand for the late, and the l bar stand for not being late, doesn't late, and then not late, late, and then doesn't not late.
00:54
And then if it comes from the printer 1, the chance being late equal to the zubon 2...