A bag contains 4 red balls and 8 yellow balls.find the probability of picking a red ball. picking a yellow ball.
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2
Probability of picking up a red ball = 4/12 = 1/3
Probability of picking up a yellow ball = 2/3
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Answer:
total no. of outcomes= 4+8= 12
a) let A be the event that the ball drawn is red in colour
no. of favourable outcomes= 4
P(A) = no.of favourable outcomes/ Total no. of outcomes
= 4/12
P(A)= 1/3
b) let B be the event that the ball drawn is yellow in color
no. of favourable outcomes= 8
P(B)= no. of favourable outcomes/total no. of outcomes
= 8/12
P(B)= 2/3
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