Step 1
[tex]The\text{ probability of choosing a red marble = }\frac{1}{9}[/tex]
Step 2:
Total number of outcomes = 9
Number of outcomes we want = 1
Number of outcomes we don't want = 9 - 1 = 8
Step 3
[tex]\begin{gathered} \text{Odds in favor = }\frac{wanted\text{ }outcomes}{\text{unwanted outcomes}} \\ \text{Odds in favor = }\frac{1}{8}\text{ or 1 : 8} \end{gathered}[/tex]
Final answer
Odds in favor = 1 : 8 or 1/8
