SOLUTION: A computer finds that 14% of the computers they manufacture are defective. What are the chances that 11 computers out of a 100 computer shipment do not work? What are the chan

Question 865884: A computer finds that 14% of the computers they manufacture are defective. What are the chances that 11 computers out of a 100 computer shipment do not work?
What are the chances that four or more computers out of a 15 computer shipment do not work?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

p(def) = .14,  n = 100

P(x = 11) = binompdf(100, .14, 11) = .0849  0r  8.49%

p(def) = .14,  n = 15

P(x = 4) = binompdf(15, .14, 4) = .0998   0r 9.98%

Or for singular probability:

Using  

p and q are the probabilities of success and failure respectively. 

In this case p= .14 and q = .86

 

 

RELATED QUESTIONS

A computer dealer had 20 computers of which 3 are defective.
A. If she selects a... (answered by stanbon)
  In a manufacturing plant that produces computers, a 0.15 probability exists that a... (answered by stanbon)
Two computers A and B are to be marketed. A salesman who is assigned the job of finding... (answered by ikleyn)
 A computer retail store has 9 personal computers in stock. A buyer wants to purchase 4... (answered by VFBundy)
A computer retail store has 8 personal computers in stock. A buyer wants to purchase 4 of  (answered by Boreal)
Schools are classified by the number of computers they had

# of Computers         1  -  (answered by ikleyn)
You buy 20 computers,3 of them are defective. Three computers are randomly selected and... (answered by robertb)
A shipment of 27 computers, 5 are defective. Four computers are randomly selected and... (answered by Theo)
Given that there are 12 computers on a shelf at the store and 3 are defective; what is... (answered by Boreal)