Question

a bag contains four balls. One is blue one is white and two are red.Two balls at random are drawn from the bag. if there is a red ball among the two balls drawn out what is the probability that the other ball drawn out is also red....My answer is 2/3 but it's wrong.. please help​

Answer 1

Answer:

1/3 is the answer as out of three balls probability of getting red ball is only one out of three

Answer 2

Answer:

1/3

Step-by-step explanation:

n(B) = 1

n(W) = 1

n(R) = 2

favourables = (R,R)

Possibles = ( B,R) (R,R), (R,W)

P(E) = favorable/ possibles

P(E) = 1/3