00:01
Okay, so we're told that for this problem, for every 1 ,200 computers, 9 were found to have defects.
00:07
So the total number of computers is 1 ,200.
00:13
And the number with defects, call in d, is 9.
00:20
So we wanna know the probability that any given computer would have a defect.
00:26
So that's just going to be the number with defects divided by the total number.
00:38
And so that's just 9 divided by 1 ,200, which gives us 0 .0075.
00:49
If we were to round this to the nearest hundredth, that would give us 0 .01.
00:57
If we want the percentage probability, then we just multiply that by 100.
01:03
And that's gonna give us 0 .75%...