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PIMSO 2023 - Mathematics - Grade 6 - National Round Question 28

PIMSO Maths · PIMSO 2023 - Mathematics - Grade 6 - National Round

Question 28

There are 2 coins: a fair coin and a biased coin that lands on heads 75% of the time. What is the probability of flipping 2 heads in a row if you flip the fair coin first, then the biased coin?

Editorial assumption: the two coin flips are independent.