Question

What is elementary event? Give an example

Answer 1

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Answer 2

What is elementary event?

An event with a single result in its sample space is known as an elementary event. It is also termed as a simple event or atomic event. If we explain it in terms of set theory, the elementary event is a singleton set. This event is said to be a single element taken from a sample space.

We know that an event is a result of some experiment. The elementary event is called the simplest result of that experiment.

Therefore, we may say that elementary events are collected into compound events, i.e. a compound event is broken into two or more smaller events known as elementary events.

For Example: -

• Randomly taking a card from a deck is an elementary event.

• When two coins are tossed, possible outcomes are {HH}, {HT}, {TH}, {TT}. Then each of these outcomes are known as elementary event.

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