[[Actuarial Notes Wiki|Wiki]] / [[Actuarial Glossary]] / ==Event== > 🟦 **Definition** > An **event** is any subset of the [[Sample Space]]. >☑ **Example** >An experiment consists of flipping 2 coins. The outcome of each coin flip is binary: either heads or tails. The experiment has 4 possible outcomes: {h,h; h,t; t,h; t,t}. The collection of outcomes where the first coin flip is a heads, is an **event**. >$ E = \{\text{all outcomes where the first coin flip is heads.} \}$ > 🔝 **[[Exam P-1 (SOA)|Exam P]]** > - ➡ Next concept: [[Probability]] > - ➡ Previous concept: [[Sample Space]]