possibility to answer test 100%

its 50/50, in the probability space either you pass or you dont

Each question = 25% chance of good answer
20 question = 25%^20 = 9,09*10^-13

>>8664572
so imagine if test have 12 questions and yes or no only, and you answered 6 question correct,then how many chances you had to answer 6 of them correct

>>8664568
Nice meme

>>8664563
>How many chances that you pass test 100%
>How many chances
1.

>>8664563
>how many chances you had to answer 6 of them correct

1. Unless you do the test more than once.

>>8664578
1,5625%

>>8664585
Okey and last question how many chances you have to answer 10/12 in test with yes/no choices, doing it all random?

>>8664591
However many chances they give you.

>>8664591
It's 1/42

>>8664585
Dead wrong. This would be the correct choice if the test had 6 questions was the probability you got 6 true/false questions right.

Research binomial distributions and bernoulli trails, the actual probability is ~22.6%

>>8664563
Not a mathematician here, but isn't it just 4^20?

File: Screen Shot 2017-02-10 at 7.32.18 PM.png (685KB, 1440x900px) Image search: [Google]

685KB, 1440x900px

Answer: pretty damn low. Even at 10 questions per exam, 100,000 trials were not enough to produce a single fully correct result.

>>8664572
This seems to be in line with my empirical answer.

>>8665424
This is absolutely wrong. I haven't taken a probability course yet but I can tell you that it makes zero sense from a common sense perspective.

can't believe all this conversation, isn't >>8665510 the right answer?

>>8665560
0.25^20 actually, but yes

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1MB, 1440x900px

>>8665424
It is like the other dude, who evidently knows probability, said.

>>8664563
>>8664572
is correct

>>8664563
Technically .25^20 seems logical.

REALISTICALLY--and this is what's important--I could write a computer program to randomly select answers. I would gladly accept your money after showing you it couldn't get 100% in a billion^billion^billion tries (as in a lot worse odds than .25^20).

>>8665759
>Doing it randomly and not exhaustively.
Lel, good job at being a dumbass

>>8665550
>>8665610
Like he said, that's correct answer if the question was "probability of getting six out of six correct." 22.6% would be the correct answer if the question was "probability of getting exactly six out of twelve correct." Another possibility would be "probability of getting at least six out of twelve correct," which is 61.3%. It depends on what OP is actually asking, personally I can't tell.

>>8664563
>How many chances
about tree-fiddy