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1. The event that none of the events E, F nor G occur is (E U F U G)’

   Given,

   Three events are E, F, G

   Here, we’ll make use of set notations

   U -> Union

   Example is A U B which means an occurrence that happens in either A or B

   n -> Intersection

   Example is A n B which means an occurrence that happens in A and B.

   It can also be written as AB

   ‘ -> Complement

   Example is A’ which means an event where A doesn’t occur.

   Here, we have to prove that none of the event occur,

   This means that;

   E doesn’t occur

   F doesn’t occur

   G doesn’t occur.

   So, the notation is (E U F U G)’

   Learn more about events here: https://brainly.com/question/14787733

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