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An urn contains 5 balls, two of which are marked $1, two $4, and one $10....

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Question

Basic Math

An urn contains 5 balls, two of which are marked $1, two $4, andone $10. A player is to draw two balls randomly and withoutreplacement from the urn. Let X be the sum of the amounts marked onthe two balls. Find the expected value of X.

Side note:

I know Rx={2,5,8,11,14}

and P(X=2) = 1/10 ... etc

I just need a proper explanation for finding the values ofP(X=2), P(X=5), etc. Thanks!

Answer & Explanation Solved by verified expert
4.3 Ratings (802 Votes)
giventhe urn contains five balls twoS1two S4 and one S10A player draws two balls randomly without replacementnow a player can draw two balls from the urn    See Answer
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