What are the odds?

[ParadiceCity9]

Me and 3 other people on our English vocab. homework all got the same 3 answers wrong. There were 40 questions. What were the odds that we would all get the same ones wrong with the same answers?

My teacher thought we cheated be we actually didn't. ):

[william18]

Perhaps all three studied together which might be a variable to this coincidence because all three of you studied the same information which means all three of you could have possibly forgot to study that one bit.

[william18]

Especially vocab.

[ParadiceCity9]

No dude. first of all it was 4 people, "Me and 3 other people" = 4. But it wasn't a test we didn't study anything it was just hw. We were provided a wordlist and we had to use the words from there. Completely individual.

[Snorri1234]

I can't be bothered to calculate it. Partly because I can't find my calculator, and partly because I forgot how to do this.

[0ojakeo0]

I can't be bothered to calculate it. Partly because I can't find my calculator, and partly because I forgot how to do this.

[oggiss]

Me and 3 other people on our English vocab. homework all got the same 3 answers wrong. There were 40 questions. What were the odds that we would all get the same ones wrong with the same answers?

My teacher thought we cheated be we actually didn't. ):

40 questions
3 people
3 answers wrong (how many options?)

[ParadiceCity9]

Me and 3 other people on our English vocab. homework all got the same 3 answers wrong. There were 40 questions. What were the odds that we would all get the same ones wrong with the same answers?

My teacher thought we cheated be we actually didn't. ):

40 questions
3 people
3 answers wrong (how many options?)

40

[oggiss]

40 answers on each question?

[dustn64]

I would look it up, but my calculator is upstairs. If you got one put:

Code: Select all

40 nCr 3

I think. That will give you all the possibilities that you could have if you missed three questions.

[oggiss]

I would look it up, but my calculator is upstairs. If you got one put:

Code: Select all

40 nCr 3

I think. That will give you all the possibilities that you could have if you missed three questions.

9880, don't think so mate

[dustn64]

I would look it up, but my calculator is upstairs. If you got one put:

Code: Select all

40 nCr 3

I think. That will give you all the possibilities that you could have if you missed three questions.

9880, don't think so mate

flip the numbers. I haven't done it for a while.

[oggiss]

I would look it up, but my calculator is upstairs. If you got one put:

Code: Select all

40 nCr 3

I think. That will give you all the possibilities that you could have if you missed three questions.

9880, don't think so mate

flip the numbers. I haven't done it for a while.

that'll give math error


I am thinking something like

more to come

[ParadiceCity9]

Keep in mind its 4 different people got the same exact answers...

[sully800]

Is this matching or fill in the blank with a word bank? Is so that increases the chances, because it means by getting one answer wrong you automatically get two answers wrong.

Is it multiple choice? If so that decreases the likelihood since you each could have guessed at a right answer.

Or is this free response or true false where you simply get the right or wrong answer?

[oggiss]

Is this matching or fill in the blank with a word bank? Is so that increases the chances, because it means by getting one answer wrong you automatically get two answers wrong.

Is it multiple choice? If so that decreases the likelihood since you each could have guessed at a right answer.

Or is this free response or true false where you simply get the right or wrong answer?

Our savior!

[autoload]

When I saw the word "odds" in the title I knew sully would not be far behind!

[Snorri1234]

Is this matching or fill in the blank with a word bank? Is so that increases the chances, because it means by getting one answer wrong you automatically get two answers wrong.

Is it multiple choice? If so that decreases the likelihood since you each could have guessed at a right answer.

Or is this free response or true false where you simply get the right or wrong answer?

You're right. Without knowing what kind of questions it is the chances will be skewed.

Still, you could calculate the odds for it if you assume it's an independant choice. I.e. if there is only one answer correct and it doesn't interfere with the other questions. (I would be assuming this, or multiple choice, as the number of questions that were wrong is uneven.)

[ParadiceCity9]

First 20 were fill in the blanks. Last 20 were pick one of two to complete a sentence.

[cena-rules]

I just cant believe it took sully so long

[MeDeFe]

First 20 were fill in the blanks. Last 20 were pick one of two to complete a sentence.

And in which part did you make the mistakes?

[Iliad]

I just cant believe it took sully so long

what are the odds?

[ParadiceCity9]

First 20 were fill in the blanks. Last 20 were pick one of two to complete a sentence.

And in which part did you make the mistakes?

all fill in the blanks.

[oggiss]

That is quite tricky to calculate.

I am gonna ask my teacher.. or a friend

[whitestazn88]

is it possible that more people also got those three questions wrong, but also got other questions wrong?

maybe those 3 questions were just fucked up?