Reply
Tue 14 Mar, 2017 06:50 am
40 samples were drawn from a lot of 300 containing 6 defectives. What's the probability of drawing at least 2 defectives?
Hint: it's easiest to figure out the probability of less than 2 defectives.
@rahulg,
Use the hypergeometric distribution and solve 1 - {P(X=0) + P(X=1)}.
https://en.wikipedia.org/wiki/Hypergeometric_distribution
Stumble It!
Tweet This
Bookmark on Delicious
Share on Facebook
Share on MySpace