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suppose you have a wallet with $5 bills, $10 bills, and $20 bills. if the probability of picking 10 dollar bill is 4/15, and the probability of picking 5 dollar bill is 1/3, what is the probability of picking a 20 dollar bill?

a. 1/15
b. 1/5
c. 4/15
d. 2/5***

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1 answer

  1. 1-(4/15 + 1/3) = 6/15 = 2/5
    good job

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