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In the book Chances: risk and odds in Everyday Life, author James Burke says that approximately 57% of the general US population wears glasses or contacts. If two people are chosen at random from the US population, what is the probability that both wear glasses or contacts?

User DraughtGlobe
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1 Answer

28 votes
28 votes

Answer:


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Explanation:

Given

Let E represents the event of wearing glasses or contacts.

So;


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Required

The probability that selected 2 wears glasses

This is calculated as:


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User Peter Westerlund
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