Question
Asked Oct 13, 2019
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One coin is taken at random from a bag containing 6 nickels, 9 dimes, and 9 quarters. Let X be the value of the coin selected. Find E(X). (Round your answer to two
decimal places.)
E(X) $
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One coin is taken at random from a bag containing 6 nickels, 9 dimes, and 9 quarters. Let X be the value of the coin selected. Find E(X). (Round your answer to two decimal places.) E(X) $

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Expert Answer

Step 1

There are 6 nickels, 9 dimes and 9 quarters, then total number of coins is,

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6+9 9 24

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Step 2

Probability of selecting a nickel is,

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6 1 0.25 P(N) P(X 0.05s - 24 4

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Step 3

Probability of select...

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P(D) P(X 0.10S) - = 0.375 24 8

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Math

Advanced Math