SOLUTION: A lot of 1000 components contains 250 that are defective. Two components are drawn at random and tested. Let A be the event that the first component drawn is defective, and let B b

Question 950575: A lot of 1000 components contains 250 that are defective. Two components are drawn at random and tested. Let A be the event that the first component drawn is defective, and let B be the event that the second component drawn is defective.
find P(B|A)
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
P(B|A)=P(A_and_B)/P(A)
However since A and B are independent,

and
P(B|A)=
RELATED QUESTIONS
There are 1000 components in a box of which 10 are known to be defective. two... (answered by Edwin McCravy)

A lot of 50 electrical components numbered 1-50 is drawn at random, one by one, and is... (answered by stanbon)

A lot of 50 electrical components numbered 1 to 50 is drawn at random, one by one, and is (answered by CPhill)

a box contains 2000 components of which 15% are defective. a second box contains 5000... (answered by oscargut)

A box contains 35 components, of which 10 are defective. A set of 6 components are (answered by stanbon)

A container has 50 electronic components, of which 10 are defective. If 8 components are (answered by stanbon)

A container has 50 electronic components, of which 10 are defective. If 8 components are (answered by Fombitz)

A container has 50 electronic components, of which 10 are defective. If 6 components are (answered by stanbon)

A container has 50 electronic components, of which 10 are defective. If 6 components are (answered by Fombitz)