In a manufacturing plant that produces new computers, a 0.15 probability exists that a computer will be defective. If five computers are manufactured, what’s the probability that all of them will be defective?

Question

allank · Answer

That should be the probability of one computer being defective*number of computers. 
0.15*5

anonymous · Answer

so you multiply by the percent ?

allank · Answer

Yep.

anonymous · Answer

i got 0.75

allank · Answer

Lemme think about the logic of that..

anonymous · Answer

should i round it to become .76

allank · Answer

Sorry about this change. Actually, it won't be 0.15*5, but:
(probability of a computer being defective)^(no of computers)=(0.15)*(0.15)*(0.15)...=0.15^5

allank · Answer

So the probability is actually 7.59E-5 percent.