# mathematic

posted by .

One of the respondents is picked at random.

Q1 Given that the respondent cheated on his/her taxes, what is the chance that he/she answered “yes”?

Q2 Given that the respondent did not cheat on his/her taxes, what is the chance that he/she answered “yes”?

Q3 Given that the respondent answered “yes,” what is the chance that the respondent cheated on his/her taxes?

• statistics -

So, trying to cheat on your edx exam? You'll only feel bad. Go back to the notes and work it out.

• mathematic -

Thks Bob,as soon as you get the answer you can post us how to do it...

• mathematic -

Yeah, Bob. Don't be mean.
Anyways, I'm relevantly sure thet the first answer is 100%, and the second one is 50%.

• mathematic -

Yeah Bob, this guy probably wants a job deciding whether a drug is safe or not. What harm is there if s/he is totally clueless about probability?

• mathematic -

I'm with Bob, the test and the course are very easy. I started it a week ago and I have already gotten a passing grade. If you try hard, you shouldn't have difficulty in passing the course. So just try to follow the Honor Code and do not cheat.

• mathematic -

OK but really about part C I'm confused.
I think it should be 25% or 0.25 but it is wrong!!!!

• mathematic -

C is 1

• mathematic -

here are:
A=1
B=.5
C, I'm in the process to solve it, Definitely is not 1 or 0

after all, in real life you'll have to prove that you are able solve this kind of problems by yourself, or you better not say that you know probability!

• mathematic -

C=0.0909???

• mathematic -

C = 0.0909 and 0.6 are wrong

• mathematic -

ans of c ???? is 1 ????

• mathematic -

0.05

• mathematic -

0.06

• mathematic -

cheaters

• mathematic -

0.5455 is correct!

• mathematic -

0.5455 is wrong

• mathematic -

0.1818 is the correct one (Believe)

• mathematic -

how do u get 0.1818

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