Probability Basicshard
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We have a bag containing three coins: one is double-headed (both sides are heads), one is double-tailed (both sides are tails), and one is a fair coin. A coin is chosen at random from the bag and flipped twice. Let be the event that the first flip is heads, and be the event that the second flip is heads. What is ?
We have a bag containing three coins: one is double-headed (both sides are heads), one is double-tailed (both sides are tails), and one is a fair coin. A coin is chosen at random from the bag and flipped twice. Let be the event that the first flip is heads, and be the event that the second flip is heads. What is ?