Sampling without replacement - Probability of obtaining 3 defectives.
Six microprocessors are randomly selected from a lot of 100 microprocessors among which 10 are defective. Find the probability of obtaining at least three defective microprocessors.
((90,6)*(10,3))/(100,6)
Is this correct? Thank you.
Last edited by mr fantastic; Nov 11th 2011 at 02:26 AM.
Reason: Re-titled.
Six microprocessors are randomly selected from a lot of 100 microprocessors among which 10 are defective. Find the probability of obtaining at least three defective microprocessors.