SOLUTION: The odds against Thunderbolt winning the Sarasota Derby are 9: 2. Find the probability that Thunderbolt wins. A) 9/20 B) 11/20 C) 9/11 D) 2/11 E) 2/9

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Question 180886This question is from textbook
: The odds against Thunderbolt winning the Sarasota Derby are 9: 2. Find the probability that Thunderbolt wins.
A) 9/20 B) 11/20 C) 9/11 D) 2/11 E) 2/9
 This question is from textbook

Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
Odds 9:2 ---> 9 against horse and 2 for horse

P(thunderbolt winning)= (odds for horse)/(total odds) = 2/(9+2) = 2/11