Originally Posted by Ezekiel162
I know (think?) that ratios and odds are like +/- 1 the difference between each other.
I'm not sure what you mean by +/- 1. It seems like you may be trying to reconcile my interpretation of 1:1 and 3:1, with your previous thinking of 2:1 and 4:1. (see note below *)
I actually find percentages much easier to work with because they're universal.
i.e. always part of a hundred whereas ratios can get unwieldly:-
85% is 17:3 (or 5.7:1)
71% is 5:2 (roughly) (or 2.4:1)
17:3 and 5:2 are very difficult to compare with each other. You can
compare them a little more easily if you reduce them to a ratio to 1 (i.e.5.7 and 2.4) but the first one somehow gives the impression of being more than twice the second!
* One reason for this and possibly the reason that you may find them problematic is that, for example,
25% is one in four
. I'm sure that you can imagine that in your head. (because you are already familiar with percentages)
But the ratio is 25:75 or 1:3 (both sides of the ratio add up to the four
In fact imagining them as 100's may be an easy way to picture the simpler ones
1:1 50:50 (50%)
1:2 33:66 (33%)
1:3 25:75 (25%)
1:4 20:80 (20%)
1:9 10:90 (10%)
In the end I think percentages are easier.
Hope this helps