# Search results

1. ### Conditional probability and criminal DNA analysis

We know that ##P(A-) = (95\% \cdot 0.5\% + 5\% \cdot 98.5\% )## and ##P(guilty \ and \ A-) = (95\% \cdot 0.5\%)##, so letter a) is just ##P(guilty \ and \ A-)/P(A-)##. What I tried to do in letter b) was again using the conditional probability theorem. First calculating the probability that...
2. ### Observation of events and analysis of the associated Hypotheses

So you agree with my part c) calculation ? What about letter b), as told before, I don't think I truly understand what that relative frequency question mean.
3. ### Observation of events and analysis of the associated Hypotheses

so you agree with my calculations in c), but don't agree with the scientist's assumption that the events are independent? And letter b) could you clarify what that relative frequency interpretation mean ?
4. ### Observation of events and analysis of the associated Hypotheses

you mean my calculations in letter c) ?
5. ### Observation of events and analysis of the associated Hypotheses

For letter a), i think that he is assuming that each hypothesis is independent, and that they are mutually exclusive. For letter b), I understand that it indeed admits the relative frequency interpretation, since the the experiment is being produced several times. For letter c) we do the...