00:01
In his question, i'm going to let e denote the event and ic chip has defective etching.
00:08
And c denote the event the chip has a cracked defect.
00:12
We're given that probability in ic chip has defective etching is 0 .12.
00:19
So this is probability of event e.
00:24
And probability an ic chip has a cracked defect is 0 .29.
00:30
So this is probability of event c.
00:34
And probability and ic chip has both defects.
00:37
Now both defects means it has defective etching.
00:44
That's even e.
00:45
N.
00:46
Now, n is times set notation is intersect or is plus.
00:54
Set notation is union.
00:56
So n is intersect.
00:59
It has a crack effect.
01:01
So there's event c.
01:02
So this is probability e intercept.
01:04
Set c and that's 0 .06.
01:07
Now i want to find probability one of the chips will have at least one of these defects.
01:14
That means either it has a defective etching, there's even e, or is union...