+0  
 
0
65
1
avatar

A manufacturer knows that 14% of the products it produces are defective. Find the probability that among 7 randomly selected products, at least one of them is defective.

 Jan 15, 2020

Best Answer 

 #1
avatar+18295 
+2

If 14% are defective, then 86% are not defective.

Therefore, (0.86)7 is the probability that none are defective:  (0.86)7​  =  0.3479

At least one of them is defective is  1 - (none of them is defective):     1 - 0.3479  =  0.6521

The probability that at least one of them is defective  =  0.6521.

 Jan 15, 2020
 #1
avatar+18295 
+2
Best Answer

If 14% are defective, then 86% are not defective.

Therefore, (0.86)7 is the probability that none are defective:  (0.86)7​  =  0.3479

At least one of them is defective is  1 - (none of them is defective):     1 - 0.3479  =  0.6521

The probability that at least one of them is defective  =  0.6521.

geno3141 Jan 15, 2020

19 Online Users