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notsponge [240]

3 years ago

11

A coin is tossed thrice. Find the probabilitythat there will be at least one head

1 answer:

lesantik [10]3 years ago

5 0

The probability that the coin when tossed turns up heads is 1/2. This means that when the coin is tossed, the probability of tails is 1 – 1/2 = 1/2. When the coin is tossed twice, the probability of getting only tails is 1/2* 1/2 = 1/4. The probability of getting at least one heads is 1 – 1/4 = 3/4.

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