An urn contains 8 red, 9 white, and 2 black balls. One ball is drawn from the urn, it is replaced, and a second ball is drawn. Construct a probability tree to determine the probability that at least one ball drawn is black B.
A)Pr(at least one
B) =
B)Pr(at least one
B) =
C)Pr(at least one
B) =
D)Pr(at least one
B) =
E)Pr(at least one
B) =

Question

An urn contains 8 red, 9 white, and 2 black balls. One ball is drawn from the urn, it is replaced, and a second ball is drawn. Construct a probability tree to determine the probability that at least one ball drawn is black B. ​
A)Pr(at least one 
B) = 
B)Pr(at least one 
B) = 
C)Pr(at least one 
B) = 
D)Pr(at least one 
B) = 
E)Pr(at least one 
B) =

Quizplus · Accepted Answer

The Answer of An urn contains 8 red, 9 white, and 2 black balls. One ball is drawn from the urn, it is replaced, and a second ball is drawn. Construct a probability tree to determine the probability that at least one ball drawn is black B. ​
A)Pr(at least one 
B) = 
B)Pr(at least one 
B) = 
C)Pr(at least one 
B) = 
D)Pr(at least one 
B) = 
E)Pr(at least one 
B) =

An Urn Contains 8 Red, 9 White, and 2 Black