28 You have a blue urn and a yellow urn the blude urn contai

#28 You have a blue urn and a yellow urn. the blude urn contains 3 blue balls and 1 yellow ball. the yellow urn contains 1 blue ball and 5 yellow balls. You choosea ball randomly from the yellow urn, replace the ball and choose a ball from the matching urn. Find the probability that the second is yellow is yellow?

#29 Continuing #28, find the probability that the 2 balls drawn are not the same color

in fractions please

Solution

NOTE: WE ARE SUPPOSE TO ANSWER 1 QUESTION AT A TIME FOR REST REPOST AGAIN. I WILL GIVE U SOLN OF 28TH

YELLOW HAS TOTAL 6 BALLS

CASE 1) IF YELLOW BALLS WAS PICKED

REPLACE WITH BLUE

NOT 2 BLUE BALL AND 4 YELLOW

AS YELLOW BALL WAS PICKED SO WE WILL TAKE 2ND FROM YELLOW URN

PROBABILITY OF 2ND BEING YELLOW = 4/6

CASE 2) IF 1ST BALL WAS BLUE PICKED AND REPLACE WITH OTHER URN

NOW BLUE BALL WILL HAVE TOTAL 5 BALLS 4 BLUE 1 YELLOE

SO PROBABILITY OF 2ND BEING YELLOE = 1/5