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Consider the experiment of tossing three coins.

What is the probability of getting anything but one head and two tails?

 

I need help on how to figure this out please!

 Feb 6, 2018
 #1
avatar+106536 
+1

Outcomes of tossing three coins

 

T  T   T

T  T   H

T  H  H

T  H  T

H  H  T

H  T  H

H  T  T

H  H  H

 

Prob  of  one head and two tails   =  3 / 8

 

 

cool cool cool

 Feb 7, 2018
 #2
avatar+58 
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That's what I tried to type in for my answer it was wrong. I tried .375 and then I tried it rounded off 38 % both were wrong.

motorcycle2008  Feb 7, 2018
 #3
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+1

But your question says "What is the probability of getting anything but one head and two tails?"

So, the probability for ANY OTHER combination would be:

1 - 3/8 =5/8 !!!

 Feb 7, 2018
 #4
avatar+58 
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So I found that 5/8 works for the answer but I had to put it like this 62.5 %.

 Feb 7, 2018
 #5
avatar
+1

Yes, that is fine because 5/8 =0.625 x 100 =62.5%

 Feb 7, 2018

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