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what is the probability she would draw out a wrong address
1/25 is the chance she will draw a wrong address, if she draws 4 times, that would be 1/25 times 4, that would equal 4/100
So if I am right, it would be 4/100 and that can be simplified to 1/25
THats not one of the answers
oh, sorry then, It has been a while since I have done probability
let me go read up on it quick then get back here
A 3/2475 B 3/2500 C 4/2475 D 1/625
1st time round prob= 4/total 2nd time, theres 1 less , so = 3/(total-1)
I dont get it?
but wouldn't that equal 1/825?
but thats not one of the answers
let me see....
let me try to get someone here that knows tis...
its ok I have another question that i need help with too
post the one here while i try to get someone here
it was C
could you explain it @ZhangYan