How smart is Cred Forums?

There's 4 scenarios
h/h
h/t
t/h
t/t
But since tails/tails is somehow not going to happen, then there's 1/3 chances

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4 scenarios
tails/heads
heads/tails
heads/heads
tails/tails
tails tails falls off because of the guarantee that at least one is heads
so we are left with 1/3

I see the reasoning in this, but since two of the options are basically the same, and it wasn't specified which coin lands on heads no matter what, the chances become 1/2

Coin one flip : 100% chance of heads
Coin two flip : 50% chance of heads

50% * 100% = 50%
Fucking autists

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Possible outcomes given the parameters are HH, HT, or TH. One of the three meets the criteria of the question. The answer is 1/3.

>How smart is Cred Forums?

I believe the question isn't about the image, but rather how many times per day this bait can work.

sauce?

100% are you an idiot?

ho shit wrong one

Case 1:
Coin A is H
Coin B is head or tails, so results are - 50% Hh and 50% Ht
Case 2:
Coin B is h
Coin A is heads or tails, so again 50% it's Hh and 50% it's Th.
Summation of these two cases gives that there's 50% chance of both heads and 50% of heads+tails.

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>two of the options are basically the same

You're retarded.

Flip 2 coins. At least 1 landed heads, so could have

>coinA=heads, coinB=tails
>coinA=tails, coinB=heads
>both coins=heads

1/3

Listen, chance only plays a part in ONE of the coins' outcome. The other is predetermined.
Ergo it's 1/2

.5

>epic troll

Unclear question. Too ambiguous. Read... en.wikipedia.org/wiki/Boy_or_Girl_paradox

OP this topic is bad and you should feel bad for making it. Clearly its just a shitpost. Just fuck right the hell off. Thanks ! :3

>basic conditional probability question
>troll

Kill yourself.

The answer is 1/3

>chance only plays a part in ONE of the coins' outcome. The other is predetermined.

No coin is determined. Both coins are variable because EITHER coin could be tails, just not both at the same time.

For a 2-coin flip, there are 3 equally likely ways to get at least 1 heads coin:

heads, heads
or
heads, tails
or
tails, heads

Those are the only 3 possible outcomes. All 3 of them are equally likely.

1/3

50/50 ; it either happens or its doesnt. basic logic.

>No coin is determined

You obviously didn't read the entire question.

Yes, I did, you fucktard. You obviously don't understand the difference between determined and variable.

sauce?

But as soon as the coins lands, one of them is determined to be heads.
It doesn't matter which, it just leaves us with the other coin and the chances of the other coin being heads instead of tails is 50%. Simple.

1 in 3

>Getting this serious about math on Cred Forums
Kill yourself my man.

>given that at least one of them landed heads

just reword the question into logic

two 50/50 chance of heads coins are flipped. what is the 50/50 chance of the second coin landing heads if one coin already landed heads.

answer is 50/50

its 43.5%

HH
TH
HT

=Coin 1
H
T
H

=Coin 2
H
H
T

Each remaining coin has a 66% Chance to land on heads, and only a 33% chance to land on tails.

We could also phrase it like this.
One of the coins have a 50% chance of being the coin that lands heads, while the other coin simply has 50% chance of landing either heads or tails.
Either way, you end up with a 50% chance of getting both heads.

As soon as you say either, left coin must be heads or right coins must be heads, you end up with a 50% chance of the other being heads.

This would be true if it asked if the left or right landed heads but since it is saying at least one landing heads you can rule out the same answers

>(H T)(T H)

ar least one of these landed heads in both situations so it doesn't matter

A good way of looking at it is if i flip 1 coin and it lands head i can then move on to the next question. What are the odds that i flip heads on the next coin 50/50

you're retarded if you think its anything other than 1/4

you cant just cancel out one of the possibilities and make the chances higher...lol