Probabilites regarding 3 coin tosses

williamrobertsuk

New member
Find the problem attached.

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LCKurtz

Full Member
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

Elite Member
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

New member
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

New member
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?

3.=0.37
4.=0.5

pka

Elite Member
1. =0.125 Correct
2.=0.125 Correct
Now, the other two, I am still struggling, I thought it could be 0.25, but it ain't. Any help there?

williamrobertsuk

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

JeffM

Elite Member
Each sequence is equiprobable. But some sequences have the same total number of heads and tails as other sequences.