at a crime scene, even if a genetic prfoile of dna matchup conviction is not guarenteed.

only 597 of 3000 matches led to convictions. Suppose 40 new dna matches which are selected at random and that the probability of a conviction in each case is 597/3000.

so what is the probability of at most five convictions.

and the probability of between four and eight convictions?

then if there were 14 of the 40 matches that lead to convictions. is there any evidence to suggest the probability of a conviction has increased??

thanks for any help with this, i've tried to set these up, and i still can't seem to get them right.

...i've changed the wording around to make it more easier to read, sorry about that.