odds are 1:6
The odds of becoming an engineer are fairly good. If you would like to become an engineer and do well in school the odds are in your favor.
She is a Mexican American who dreams about becoming a anime cartoonist.
1 in 10000
Very slim
1%
1 and a 1000000
a degree in art, strong sense of humor, and ability to see humor in everyday living
Such 'odds' cannot be calculated. This is a goal you have to work toward. Though as with many such goals a bit of luck is needed too.
12 in billion are predicted to become a billioner every year.
1000 to 1
If you draw cartoons about Islam or Mohammad, a fatwa may be issued against you. The other risk is keeping from becoming homeless. Don't quit you day job.