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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 one of the coins comes up heads?

Enter your answer as a fraction in simplified form.

 Jan 14, 2019

Best Answer 

 #1
avatar+16487 
+2

There are 8 possible outcomes .......   tth hth etc     Only ONE does not have a t in it   hhh    the other 7 outcomes all have at LEAST one t

so

7/8

 Jan 14, 2019
 #1
avatar+16487 
+2
Best Answer

There are 8 possible outcomes .......   tth hth etc     Only ONE does not have a t in it   hhh    the other 7 outcomes all have at LEAST one t

so

7/8

ElectricPavlov Jan 14, 2019

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