Q: When a fair coin is tossed 10 times in a row what is the probability that heads comes up at least once?

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7/10

The answer depends on how many coins were tossed.

Assuming that it is a fair coin, the probability is 0.9990

1/6

Probability of no heads = (0.5)^5 = 0.03125Probability of at least one head = 1 - probability of no heads = 1 - 0.03125 = 0.96875

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7/10

It is 0.3125

There is a 50% chance that it will land on heads each toss. You need to clarify the question: do you mean what is the probability that it will land on heads at least once, exactly once, all five times?

well, it will have 6 times of the greater chance.

Prob(Exactly 9 Heads) = 0.0269 Prob(At least 2 Heads) = 0.0327 Prob(At most 8 Heads) = 0.9673

Prob(at least 4 heads) = Prob(4 heads) + Prob(5 heads) = 5/32 + 1/32 = 6/32 = 3/16

you have 63 chances out of 64. i once witnessed a coin being tossed seven times and giving up 7 consecutive heads. we never tried it an eighth time, 7 heads and you had to go to the bar.

It is 0.75

The answer depends on how many coins were tossed.

Assuming that it is a fair coin, the probability is 0.9990

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