# Math

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You start your shift as a cashier with your drawer containing ten \$1 bills, 5 \$2 bills, three \$5 bills, one \$10 bill and one \$100 bill. Find the expectation if one bill is selected.

• Math -

(1*1 + 5*2 + 3*5 + 1*10 + 1*100)
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(1+5+3+1+1)

• Math -

10.23

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