SOLUTION: A bag contains 5 red balls and 3 green balls. A ball is drawn and then replaced
before a ball is drawn again. Draw a tree diagram to show all the possible
outcomes. Find the prob
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-> SOLUTION: A bag contains 5 red balls and 3 green balls. A ball is drawn and then replaced
before a ball is drawn again. Draw a tree diagram to show all the possible
outcomes. Find the prob
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Question 1209941: A bag contains 5 red balls and 3 green balls. A ball is drawn and then replaced
before a ball is drawn again. Draw a tree diagram to show all the possible
outcomes. Find the probability that:
a) two green balls are drawn.
b) the first ball is red and the second is green. Answer by AnlytcPhil(1806) (Show Source):
Since we are replacing the ball, the probabilities do not change when
we draw the second ball.
P(Red) = 5/8, P(Green) = 3/8
Notice that the sum of the probabilities of the far right is 1:
a) two green balls are drawn
b) the first ball is red and the second is green.
Edwin
