if the odds agaisnt you winning are 1 to 7,what would the probability that you would win?

Answer 1

odds and probability are not the same thing, even though they are closely related.

if the odds in favour of some event are a : b
then the prob of that event = a/(a+b)

so if the odds against you winning are 1 : 7
then the prob of losing = 1/8
and the prob that you will win = 1- 1/8 = 7/8