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A jar contains 3 pennies, 7 nickels and 7 dimes. A child selects 2 coins at...

A jar contains 3 pennies, 7 nickels and 7 dimes. A child selects 2 coins at random without replacement from the jar. Let x represent the amount in cents of the selected coins.

Find the probability X=10
Find the probability X=11
Find the expected value of X.
Math   Statistics-And-Probability   
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