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Coco flips a penny, a nickel, and a quarter. Each coin is fair (meaning that heads and tails are equally likely to come up). What is the probability that at least two of the coins comes up heads?

 Oct 23, 2020
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8 possibilities

ttt

tth

tht

thh

hhh

hht

hth

htt

    How many do you see (out of 8) have at least 2 h's?

 Oct 23, 2020

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