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Probability of flipping multiple coins all heads or tails

This math skill teaches how to calculate the probability of flipping multiple coins and getting all heads or all tails. It involves determining the number of desired outcomes and dividing by the total number of possible outcomes based on each coin having two sides.

Learn probability of flipping multiple coins all heads or tails

Teaching Transcript

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What is the probability of flipping all heads on these three coins?

Probability is just the number of outcomes we want, or desired outcomes, divided by the total number of possible outcomes

There is only 1 way to flip all heads

But for possible outcomes, each coin has two options, heads and tails. So, the combination is 2 times 2 times 2, or 8 possible ways the coins can land

So our probability of flipping all heads is 1 over 8, or 0.125 or 12.5%