There are 5 blue, 3 yellow and 4 red chips in a bag. You draw two chips out of the bag without replacement. Given the first chip is blue, what is the probability the second chip will be red?
A. 5/12
B. 9/12
C. 20%
D. 4/11
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Answer:
D. 4/11
Step-by-step explanation:
there are 5 blue, 3 yellow and 4 red chips.
total no. of chips = 5+3+4 = 12
two chips are taken out and one of them is blue.
let us assume the first chips to be taken is blue.
no. of chips in the bag after taking one blue chips= 12-1 = 11
no. of red chips = 4
probability = no. of favourable outcomes/ total no. of outcomes = 4/11
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