SOLUTION: 100 calculators 2 are defected. I buy 8 what is the probability that I will get a defected one

Algebra ->  Probability-and-statistics -> SOLUTION: 100 calculators 2 are defected. I buy 8 what is the probability that I will get a defected one      Log On


   

Question 595803: 100 calculators 2 are defected. I buy 8 what is the probability that I will get a defected one
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
100 calculators; 2 are defective.
I buy 8; what is the probability that I will get a defected one.
---
P(at least one defective) = 1 - P(no defective)
----
= 1 - 98C8/100C8
-----
= 1 - 0.8457
-----
= 0.1543
==================
Cheers,
Stan H.
==================