Prior to the Academy Awards ceremony in 2009, the United Kingdom bookmaker Ladbrokes reported the following odds for winning an Oscar in the category of best actress (The Wall Street Journal, February 20, 2009).

Best Actress.....................Movie...............................Odds

Anne Hathaway.................Rachel Getting Married ............2:11

Angelina Jolie...................changeling............................1:20

Melissa Leo......................Frozen river...........................1:33

Meryl streep.....................Doubt.................................3:10

Kate Winslet ....................the reader..............................5:2

a. Express the odds for each actress winning as a probability.

b. According to your calculations, which actress was most likely to win an Oscar? Kate Winslet won her first Oscar on February 22, 2009. Was your prediction realized?