Probabilites regarding 3 coin tosses

williamrobertsuk

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Find the problem attached. :)

Capture2.JPG
 
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LCKurtz

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We aren't here to work problems for you and just give you answers. Show us what you are thinking on each one and we will comment.
 

pka

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If we flip any coin three times here are all the possible outcomes.
\(\displaystyle \begin{array}{*{20}{c}}
H&H&H\\
H&H&T\\
H&T&H\\
H&T&T\\
T&H&H\\
T&H&T\\
T&T&H\\
T&T&T
\end{array}\)
Now YOU do some work. Answer each of the questions and post the results.
If you do not then do not expect any further help.
 

williamrobertsuk

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May 18, 2019
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If we flip any coin three times here are all the possible outcomes.
\(\displaystyle \begin{array}{*{20}{c}}
H&H&H\\
H&H&T\\
H&T&H\\
H&T&T\\
T&H&H\\
T&H&T\\
T&T&H\\
T&T&T
\end{array}\)
Now YOU do some work. Answer each of the questions and post the results.
If you do not then do not expect any further help.
Thanks, and I am new here, I started posting before I even read the rules, but I am working on it and I will write back! :)
 

williamrobertsuk

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Joined
May 18, 2019
Messages
32
If we flip any coin three times here are all the possible outcomes.
\(\displaystyle \begin{array}{*{20}{c}}
H&H&H\\
H&H&T\\
H&T&H\\
H&T&T\\
T&H&H\\
T&H&T\\
T&T&H\\
T&T&T
\end{array}\)
Now YOU do some work. Answer each of the questions and post the results.
If you do not then do not expect any further help.
1. =0.125
2.=0.125
Now, the other two, I am still struggling, I thought it could be 0.25, but it ain't. Any help there?
 

williamrobertsuk

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May 18, 2019
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3.=0.37
4.=0.5
 

pka

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Jan 29, 2005
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8,319

williamrobertsuk

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Messages
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I managed to calculate 4 and 5, the answers are posted above! Thanks!
 

JeffM

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Joined
Sep 14, 2012
Messages
3,555
Each sequence is equiprobable. But some sequences have the same total number of heads and tails as other sequences.
 
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