# What is the probability of tossing a penny and landing on heads three times in a row?

When tossing a penny, the likelihood of receiving heads is:

Just multiplying the two probabilities together yields the probability of receiving heads both times:

Likewise, the likelihood of tossing heads three times in a row is:

This is the same as saying that there are eight possible outcomes, and these are as follows:

Ahh, HHT, TH, HTTT, TH, TH, TTTT

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