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Let C and C be two biased coins such that the probabilities of getting head...

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Algebra

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Let C and C be two biased coins such that the probabilities of getting head in a single toss are and 13 respectively Suppose a is the number of heads that appear when C is tossed twice independently and suppose is the number of heads that appear when C is tossed twice independently Then probability that the roots of the quadratic polynomial x ax are real and equal is C 1 1 2 A 40 81 B 20 81 WIN 1 D 4

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