This math skill teaches how to calculate the probability of not obtaining the same outcome when flipping multiple coins. It uses the strategy of finding the probability of all coins matching and subtracting that from 100%.
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Probability of flipping coins that are not all the same
Test your understanding of coin flip probability not all the same by practicing it! Work through the below exercises to use it in practice.
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What is the probability of not flipping all the same on these coins?
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It's easier to think of this as 100%, or 1, minus the probability of flipping all the same.
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We have a 1 in 4 chance of flipping them all the same, because we can ignore what the first coin lands on.
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So that means the probability of not flipping all the same is 1, minus, 1 over 4.
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This simplifies to 3 over 4, or 0.75 or 75%