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1.One coin is taken at random from a bag containing 5 nickels, 4 dimes, and 7...

1.One coin is taken at random from a bag containing 5 nickels, 4 dimes, and 7 quarters. Let X be the value of the coin selected. Find E(X). (Round your answer to two decimal places.)
E(X) = $

2.A lottery has a grand prize of $120,000, two runner-up prizes of $15,000 each, four third-place prizes of $6000 each, and eight consolation prizes of $1200 each. If 480,000 tickets are sold for $1 each and the probability of any one ticket winning is the same as that of any other ticket winning, find the expected net winnings on a $1 ticket. (Round your answer to two decimal places.)
$

Math   Statistics-And-Probability   
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Please post the other questions separately. As per our answering guidelines we are supposed to answer just one question or four sub parts of the same question. Thank you.

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