what is the probability you draw a marble out of a bag of 1000 tacks if there is only one marble?

I disagree Chris,

For me the  answer would be 0.  Why would I put my hand into a bag full of sharp little tacks - that would be crazy!

100%......you would search around the bag and find the one thing that wouldn't stick you......that thing would have to be the marble.....you would then draw it out of the bag...