Computer Sciences > GATE 2025 SET-1 > Conditional Probability
A box contains 5 coins: 4 regular coins and 1 fake coin. When a regular coin is tossed, the probability P(head)=0.5 and for a fake coin, P(head)=1. You pick a coin at random and toss it twice, and get two heads. The probability that the coin you have chosen is the fake coin is ______ (rounded off to two decimal places)
Correct : 0.56
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