We have a nickel (5 cents), dime (10 cents) and quarter (25 cents) in a cup. We withdraw one coin (step 1), after that withdraw one more coin without replacement (step 2), after that withdraw the third coin without replacement (step 3). Construct a distribution for amount of money we have after each step, calculate its expected value and variance.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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We have a nickel (5 cents), dime (10 cents) and quarter (25 cents) in a cup. We withdraw one coin (step 1), after that withdraw one more coin without replacement (step 2), after that withdraw the third coin without replacement (step 3). Construct a distribution for amount of money we have after each step, calculate its expected value and variance.
 
 
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