Probability of heads in coin flips
List all equally likely outcomes of the flips. Probability = favourable ÷ total, as a fraction in lowest terms.
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A fair coin is flipped 2 times. What is the probability of getting at least 2 heads? Write a fraction in lowest terms.
Answer: 1/4
A fair coin is flipped 6 times. What is the probability of getting at most 0 heads? Write a fraction in lowest terms.
Answer: 1/64
A fair coin is flipped 5 times. What is the probability of getting at most 4 heads? Write a fraction in lowest terms.
Answer: 31/32
Tip: List all equally likely outcomes of the flips. Probability = favourable ÷ total, as a fraction in lowest terms.
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